When Cable & Wireless launched their digital cable service, Interactive TV was the main attraction and focus for the platform.
Cable & Wireless teamed up with Liberate to deploy it’s eNavigator middleware client for their set top boxes. Liberate had already made deals with many US digital platforms for both Motorola and Scientific Atlanta networks, and had partnered with Acer & Thomson/RCA for their own set top box / internet tv devices. These allowed for the internet to be browsed on a TV itself, similar to a webTV or the Bush Internet TV. With that in mind it made sense to go with Liberate for its interactive platform, with many of the interactive being HTML based, essentially being microsites being designed to be useable on a PAL TV screen, as well as being usable on the set top box hardware itself. By using a HTML based system, it would be easy for existing web developers to adapt their websites for cable interactive TV.
The main interactive developer portal, viewed within the Cable & Wireless interactive browser. This also showcases the browser interface, note the lack of address or URL bar, since this service was designed to be a walled garden. Instead a url bar is provided on the developer portal, likely to allow developers to test their websites.
An interesting oversight is if you sent an email with a hyperlink embedded into it to a website such as Lycos or Google, you could use that link to open the browser to that page, and if its a search engine you could use that to load other websites that are not part of the service
Developer Website
Not much to say here, the developer portal provide links to documentation details the requirements and limitations of the TV internet platform. This goes into details the specifics of the Liberate eNavigatior platform.
Viewed in Internet Explorer 5
A look at the services…
Unfortunately the screenshots are of a low quality and resolution since they have been extracted from the PDF documents above but give a general idea of the scope of the service provided. Some screens have the browser banner at the top of the screen, I’m assuming these are portals to the microsites.
Another view of the interactive home screen, this may be from a later redesign
TV Internet Home
Similar to the Open… home screen, provides links to various services available
Sports Main Menu
Provides links to other sports themed websites,
Email Main Menu
Menu options are Check Email, Write Message, not sure of the third items, Drafts? Templates? Deleted?
Email Inbox
The STB had a built in email client, designed for the C&W email service
Two Way TV
Looks like a games service, hard to tell because of the resolution
RAC Breakdown
A resource for traffic information and a route planner
TravelTime
Looks like some sort of holiday broker
Travel
Provide links to holidays, not sure if this goes directly to the sites themselves?
News
News headlines, and weather from various sources.
When the consumer division of Cable & Wireless was acquired by ntl in 2000, the interactive platform continued it’s development. In 2002 ntl deployed the Liberate 1.2 middleware which bought improvements to the browser rendering engine, and the TV guide was rewritten to take advantage. ntl would later spend time developing services for the Langely platform, which was originally planned to use the PowerTV platform, but chose Liberate instead. This was done to ensure parity between the two platforms.
The Sky Guide user interface has been though a lot of changes ever since its launch in October 1998. Being one of the first Digital TV platforms in the UK, however despite having numerous software updates throughout the years, its core design remains the same albeit with certain alterations being made in light of new feature being added to the service.
Screenshots below are captured off a Pace 2500S5 running EPG software version
Search & Scan
Pressing the blue button cycles through the selected favorite channels, Personally I’ve never understood why it cant just open up a small menu showing favorite channels along with what’s being broadcast now, the way it’s been implemented seems like it was tacked on at the last minute, and if you have nearly 50 favorite channels it can take a while to cycle through them all.
If you wondered what the messages button does, It just shows the message above. Originally it was supposed to received broadcast style messages to the digibox, informing customers of any changes to their service
Low battery icon, supported on 2001 and later revision remotes
Sky Guide
TV Guide
Main grid style view, programmes highlighted in white have audio description, this can be changed in the Language & Subtitles menu in the Services section.
Pressing i on the remote brings up a synopsis of the program selected. Also wtf is going on with modern Simpsons?
Sky added further categories in 2005 to accommodate the amount of channels. However in 2021 some of these genres are redundant, there’s only one channel in the Gaming & Dating category for example.
Viewing channels based on genre
No more Lifestyle & Culture channels, Sky merged the genre back into Entertainment
TV Guide: A-Z Listings
Viewing A-Z list of programs by genre. This has always been a mess since the same programme is repeated multiple times due to the advent of +1 and HD simulcasts, Ideally Sky should have combined the same program title into one per channel, instead you can have pages of the same program if it is repeated on multiple channels at different times.
Programs can be viewed by subgenres, which can be selected using the bottom row of colour buttons.
TV Guide: Personal Planner
The Personal Planner was introduced in 2001, and serves as a timer and reminder feature of Sky Guide. Programs can be added here and the digibox will remind you when the program starts. Autoview will make the digibox switch over to the channel automatically, useful for recording programs to a VCR (remember those?). Series Link automatically adds the next program to the personal planner, like the Season Pass feature of the Tivo.
To be honest, I found the Personal Planner to be buggy, many series links will randomly disappear over time.
TV Guide: Favorite Channels
The Digibox can store up to 50 favorite channels, which a separate EPG being introduced that lists the favorite channels exclusively, introduced in the EPG 3.4 update
Box Office
Sadly Sky axed it’s Box Office Pay-Per-View in 2016 in favor of its on demand service. So this part of the guide is now dead.
Services
Shows telephone numbers for broadcasters and departments on Sky. I thought this was a wasted feature since how often do you contact these broadcasters?
A better feature would be to allow the user to enter and save their own phone numbers, then should a contact call, a small message would appear with the callers phone number and name, like a caller display feature. It would certainly give customers a good reason to plug the Digibox into the phoneline. The only time I’ve seen this feature implemented was on a BT Freeview box.
Services: System Setup
Second Location Picture Format refers to the RF2 output, if the second TV is 4:3 with the main set being 16:9
On-Screen icon timeout referrers to the red button props that appear for interactive. Previously the red button icons would stay on screen unless the user pressed the Backup key
Model number referrers to the driver stack implemented on the digibox, and varies for each box model and revision
Version Number – First two characters refer to the Digibox manufacturer, the next two are the major revision (model/CPU chipset), the last two refer to the minor Digibox hardware revision. This field is static and remains the same throughout
Serial Number – identifies the digibox uniquely
Viewing Card Number – Refers to the viewing card number currently inserted
Operating System – the core operating system on the digibox, using a modified OpenTV1.2 with the NucleusOS realtime kernel
EPG Software Version – Version of Sky Guide currently running
Signal Strength – How much signal is being received, determined by the size of the dish, quality and length of the cable run and the quality of the tuner used in the box.
Signal Quality – Signal to noise ratio
Lock Indicator – If the digibox can decode the transport stream
Network ID – Used to identify the satellite the user is on, Astra 28.2 is 0002 with Astra 19.2E being 0001, Hotbird 13E is 013e
Transport Stream – The transponder that the digibox is tuned to
Services: Installer Setup
This menu is hidden in plain view, since it can technically disrupt normal operation of the digibox.
LNB Setup – To change tuning parameters of the LNB if a non standard LNB is being used, not needed if using a Sky Minidish.
Default Transponder – The transponder where the Digibox loads its TV listings upon bootup
Telephone Settings – If the user need to specify a prefix to access the outside line
RF Outlets – To change the RF output channel
Manual Tuning – Manually tune a frequency, similar to Add Channels but shows the signal strength and quality.
Services: Auto Standby
Services: Other Channels
Other Channels lets you add channels that are not on the Sky EPG, but are broadcasting on the 28.2E satellite. These could be regional channels not populated on the guide, or test channels.
In theory you could use this feature to watch channels on different satellite providing your dish is pointed to the satellite. In practice you are limited to two symbol rates (22.0 and 27.5) which restricts what transponders you can tune into (on 19.2E this isn’t much of an issue since Astra frequencies tend to stay consistent). The digibox isn’t a good receiver for this purpose since it wasn’t designed for it, it only barley works with the standard Sky digital service.
Services: Favorite Channels
Lets the customer program up to 50 favorite channels. This was originally 20 channels with the limit being increased in 2005.
Pressing i gives you a channel description, this also appears when you access a channel that you are not subscribed to.
Interactive
MySky
A list of interactive services, or service. Sadly this menu used to be full of different service that were available back in the day (Playjam, Sky Active, QVC, DirectGov, Gky Gamestar)
Unfortunately MySky no longer loads
Pressing i gives you a description of the service
Error Messages
What happens when you disconnect the sat feed, the box cannot load listings, showing that the full listings are not cached in the digibox itself
A weird glitch, BBC Alba and Premier Sports on channel 65535
I believe this is due to a channel being restricted via the encryption, yet the customer is enrolled on the package. Could be due to area/post code restrictions,
Low battery message, supported on v4 remotes and later
Nag screen that appears when you boot up the digibox without a telephone line connected, since Sky have axed all of the interactive services (except for BBCi which does not use the telephone) they might as well remove this prompt
Appers when you switch on the digibox from the mains
All regular Sky digibox’s can only decode MPEG2 SD channels, if you go to an HD channel you simply receive this message. You used to be able to get tv listings for HD channels but Sky remove this to conserve memory since they were running out of EPG spaces
Appears when you insert the viewing card backwards, rumored to charge Sky for the subscription rather than the customer
When you have no signal being received for that channel transponder
Sometimes the digibox can’t load the program information, this message will be diplayed for a few seconds before the synopsis appears.
One of the many Digibox’s Pace produced over the years, and one of the first to have the tuner integrated on the mainboard, previous models had the tuner enclosed on a separate metal box fixed onto the board, or as a ZIF style socket module.
Pace 2500S digibox mainboard
Another box from the same era was the PaceDi4000N for ntl, although this is a cable receiver you can see some similarities in the design.
Pace Di4000 ntl box mainboard
Its quite a minimal clean design compared to the other boxes Pace have produced, like the Di4001
Back to the 2500S5, you can see the CPU of the box
The main, and only processor STi5512SWE. This chip incorporates the CPU (ST20) running at 60Mhz, MPEG2 decoder and graphics processor, basically a receiver on a chip. I’m not sure how it compares to other digibox’s of the era in terms of speed, considering this box was made in 2002.
ST processors were stupidly popular in many satellite receivers, and this one seems to be an NDS variant
Not sure what this chip does, maybe I/O for the RS232 port?
The unused PCMCIA slot
Flash memory chips (right) that store the EPG software and operating system. Each chip is 2Mb for a total of 4Mb Flash. There are two unpopulated banks for a potential of 8Mb. The chip at the top left, above the Omega chip is part of the RAM.
View of the dual card slots, the bottom is for the viewing card, whilst the top is for the interactive card.
ESS Teledrive ES2898S
Appears to be the modem used for the Digibox’s return path. This allows for the digibox to communicate back to Sky for box office events and interactive. Unsure of the port on the right
The front of the box with the panel removed, showing the location of the remote sensor
Earlier I went though the ntl CR3 Bromley software which was introduced in 2002 and was the basis for ntls new interactive services.
The Pace Di4000 was a redesign of the previous 4001 and 1000/2000 series box. Its worth mentioning that Pace’s model numbers don’t seem to follow a specific scheme, you would assume the Di4001 was the successor to the Di4000, however the Di4001 was the launch box for ntl in Langely areas and was a DAVIC based box, with the Di1000/DiTV1000 being its DOCSIS equivalent for Telewest and ntl Bromley areas.
These early generation boxes were designed around the Hitachi SH3 CPU with C-Cube Chipset for MPEG2 decoding and descrambling. The Di4000 replaces that with the Broadcom demodulator and the Conexant MPEG2 decoder which contains the ARM CPU.
Pace Di4000
Left Pace Di4001, Right Pace 2500 Sky Digibox
The main difference you will notice between the two is the reduction of components, with the Di4000 only having two main processors. The previous generation was split over 5 different processors. this reduction means the mainboard is smaller and the box produces less head as a result. In fact its not too far off an average Sky Digibox.
The Power supply is now separated from the main board, like the Sky Digibox design, allowing for the PSU to be replaced independently from the main board.
The audio out jacks have been removed, no you can no longer connect the box to a Hi-Fi system unless you use a scart breakout adaptor. The design for it still exists on the main board however.
The Serial port and Printer part are removed in favor of a single USB port. the serial port still exists and can be access using a VCR to RS232 adapter.
The second card slot has been removed, this was originally designed for Mondex cashcards.
The remote control protocol now supports IRDA and RC5
Conexant CX22490 – ARM920 based core, 160Mhz – 175MIPS
Broadcom BCM3250KPB – Demodulator
CrystalLAN CS8900A-CQ – Ethernet controller
Conexant Bt861KRF – Video encoder for Scart/AV output
The tuner modules, one for TV and the other for data/DOCSIS modem
Pace Di4000 front panel boardPace Di4000 rear panel
Power Input
Ethernet – For internet connectivity for the internal cable modem
USB port – To connect additional devices, never used officially by ntl or Telewest
IR in/Out – never used by ntl or Telewest
Scart ports
RF Input/Output
Cable Input
Diag Screens
To access these on this box, hold down the Up & Down buttons whilst the STB is booting, and continue to hold them down until you see this screen. The front panel LED display will change to ldr and will then go blank once you have entered diag mode.
Di4000 Setup screen 1
Sets the default frequency which is checked when the stb boots up, this frequency carries the netid for the area and any software updates
Di4000 Setup screen 2
Shows build information about the software loaded, and the hardware identifier of the box.
The replacement to CR2 software that saw the launch of interactive services for the bromley platform, CR3 saw a rewrite of the guide software, with everything now being written in the Liberate browser, and Two Way TV support for downloadable applications, whilst Liberate being used for interactive. This software would form the basis for Langely CR3, and would be the next step in unifying the platforms in terms of feature set.
Sadly not all areas had access to CR3 with former Videotron areas in London being stuck on pre-interactive CR1 blue to the networks inability to support a return path connection. ntl would have to upgrade and repull the network in order to provide support for broadband and on demand services, all of which are dependent on a return path.
The software here is running on a Pace Di4000N
The user interface of ntl digital, not a fan of their purple/pink colour scheme and the bad thing is that its everywhere, thankfully they changed the scheme by the time it can to Langely.
Interesting is the listing for interactive settings, rather than be part of the list it looks like a separate link,
Now & next
Unfortunately the purple makes it’s way onto normal viewing, with the now and next bar
I’m not sure why these early cable TV software did not allow for the volume to be changed via the STB remote, since the Telewest side also did not support changing the volume. One theory was that customer would complain to ntl about how they were unable to her any sound through their TV, unaware that the volume on the analogue box has been set to a low level or mute, so to prevent further calls that disabled the feature.
In the end they enabled the volume control in a later build ofCR3, along with Telewest. Maybe they got fed up of the support calls asking why the volume control isn’t working on their box. In hindsight they should have followed the Sky design where the STB remote controls the volume on the TV at launch (they ended up doing this later, with the newer remotes)
The options button gives a small menu, allowing for access to the help function and a shortcut to the diary. The audio Language lets to changed the language of the audio, or enabled narrative audio description, Sky would later implement a similar feature in its Sky Guide.
TV Guide
The main TV guide grid. No channels here since the box is not connected to the cable feed.
Here would have been a list of all channel genres, such as Movies, Sports, News, etc
Pressing the i button shows a short description of the program
TV Guide: Diary
The diary is ntl’s version of the personal planner, and is used to store reminders for future events and shows. Future PPV events appear here.
Subject Search
The subject search feature can be thought of as an alternative to the A-Z listings of Sky Guide, showing programs rather than the channels themselves. The idea is that the customer can find a program they like by the genre of the show.
Sadly the TV guide only has 3 days of TV listings, compared to the 7 days offered by Sky Digital.
A list of subgenres
Searching for a specific program via text
The on screen keyboard, not sure if this is the way it’s supposed to look since a lot of the text to the right being cropped off.
ntl customers could also purchase an optional keyboard to make it easier to enter text.
One nice feature is the ability to save personalized genre lists, here you choose the type of programs to like to see and you can easily search for that list without having to manually select categories.
Interactive
Trying to load interactive services which sadly no longer exist. the Liberate middleware was used to deploy the interactive microsites, with the TwoWayTV middleware being used for the interactive applications such as games.
On Demand
Looking for PPV events, this was before true video on demand had launched
Settings
The parental control feature
Changing TV settings, not sure what Enhanced Programming corresponds to?
Favourites
The favorites feature, very similar to Ntl Langely CR3
Help
There’s a help system but with no content stored on the box.
Diag Screen
Diag screen that shows the software an signal information
Using with Virgin Media
Somehow I was able to get the box to bootup on a modern Virgin media connection, with many Channel and TV listings being loaded. Sadly I was not able to get any TV channels to load, not even radio channels which still broadcast in MPEG2
Former Telewest/Virgin Media box used for standard definition TV Services.
Starting up…
Sadly the NetID for this box does not match my area, which means channels cannot be watched. Virgin have migrated their streams to MPEG4 anyway which this box cannot decode, however radio channels remain in MPEG2 although they are tied to the NetID which is why they don’t appear here.
The now and next banner that appears when you change channels. If you are used to Sky’s interface you will be familiar to how Virgin’s guide works since it’s mostly the same principles. Left and Right lets you browse the different channels, which unlike Sky will automatically filer out unsubscribed channels, and you can view information for all channels for the next 24 hours
When you remove the smartcard from the set top box
The main home screen, typically the channel you are watching appears in the box to the right. You can’t do that on a regular Sky Digibox. From here you can also access the on demand and catch services, which at the time would have consisted of BBC iPlayer and content from ITV and Channel 4. For a brief period Virgin also offered box-sets in the form of Virgin Central which could be accessed like a regular channel
Channels can be divided into multiple genres. Oddly there’s a high definition section there, despite the box lacking the ability to decode HD channels.
The main TV guide screen
Setting a reminder, similar to adding a programme to the personal planner on Sky
The favorites guide, channels you mark as favorite appear here
The reminders section, similar to the personal planner on Sky Digital
Sorting channels by genre
Settings
Box supports RGB and composite over scart, and has a widescreen option. The EPG does not run in widescreen mode however.
OnDemand and Interactive
Press F to pay Respect… or OK. I guess most of the liberate interactive stuff has been removed
General Use
For years Telewest customers were promised the launch of digital text services that could be activated by the text button. Eventually they just gave up
Help
Pressing the Help button brings up a short guide that mentions most of the common features
Earlier Build
Diag Screens
Kind of like the BIOS of a PC where you can change certain settings like the default frequency. To access it hold down the Up and Down buttons on the front panel of the box whilst it is booting up (whilst -un- appears on the front display). DIAG will then appear on the front
The only thing you can change here is the default frequency parameters. and the RF output.
Inside the box
I’m not sure how similar our 4200DVB is to the American version of the 4200. I guess the CPU chip set might be the same but the software will defiantly be different, since Scientific Atlanta have their own Operating System and middle-ware stack, whereas Virgin use Liberate TV Navigator for their software. Then there’s the DOCSIS modem compared to the DAVIC based one in the American version, and the different encryption systems (Nagravision vs PowerKey)
The internals are similar to the Di4000. One thing I have noticed with Scientific Atlanta boxes is they always mount the PSU on the side. I’m not sure if this allows for better heat dissipation since there are vents underneath the box. The tuner module is huge and takes up a lot of room on the main board.
The CPU (right) with the cable modem coprocessor (left). The CPU seems to be a customized chip for Scientific Atlanta and is designed by ST. This may indicate the CPU core being ST20 based, since many ST chips used that core in various satellite receivers, including Sky Digibox’s. As with modern designs, the main processors integrates the CPU, MPEG2 decoder, CA descrambler and graphics core on the same chip. In terms of memory, the box has 32MB of RAM and 8MB of flash, same as the Pace Di4000T.
The IO is standard for many cable boxes of the era, although this model drops the USB port, and the RF loop through has been removed. The earlier Pace Telewest boxes had an RF loop through that would modulate the STB signal onto a spare RF channel, whilst this box does the same, you cant loop the antenna feed through it, wither a combiner or diplexer device would be needed. Assuming you even wanted to use RF, most customers would use the scart connecter with the RF being used to feed a second TV. I’m not sure if the box feeds the analogue cable channels though the RF out, but since this box was released in 2004 and Telewest were already planning to shut of the analogue feed it’s unlikely.
At least there’s an Optical audio out along with analogue out, which the Di4000 boxes dropped, and the mysterious IR blaster connector.
Front view of the STB, the panel is based on the Scientific Atlanta 4250 design.
Updating System Software
To force a software update, power off the box, hold Power and Ok whilst powering the box on
It’s nice they used Wordart in their software update screens
A look at ntl’s CR3 software for the Langely Platform
CR3 was ntl’s long awaited upgrade for their Langely customers who had previously no access to any interactive services, unlike the Bromley division that had full interactivity for some time. Part of this was due to the different return path technology used, ntl had originally went with DAVIC compared to Telewest and Cable & Wireless who deployed the DOCSIS standard for their TV return path. Although they are similar in terms of functionality, the differences meant ntl could not adapt the Cable & Wireless software for the Langely platform. In addition, Langely areas also ran different software with the original EPG being provided by Pace with the Liberate 1.2 browser being installed. CR3 would see a rewrite of the entire guide with everything now being done in Liberate, this meant that the Liberate browser was loaded on start-up, unlike earlier versions where the user had to wait for the browser to load.
CR3 saw a drastic change in the user interface, with the new ntl colour scheme being adopted
Screenshots below shows the stb without any channels loaded, I have to force boot the stb by holding they down key until Boot came up on the front panel display. Sadly I was unable to get the box to load with the cable feed.
Now & Next
ntl CR3 mini guideWith alternative colour scheme enabled
TV Guide
The main user interface layout, you can see the Sky Guide influence with its layout
Viewing all channels, this would be populated with all subscribed channels, unfortunately the STB does not pick up any channels, either it cant load the NIT or the tuner inside the box is knackered
Viewing channels based on genre, up to 7 channels can be displayed at any time
Diary function, this is like the Personal Planner on Sky Guide, you can schedule future programmes to be entered here. Unable to test further since the box can’t load any programmes
On Demand
Ntl revamped replace its PPV service with a full on demand service, the programmes ordered could be watched easily. This software seems to be from before on demand was implemented as despite the menu saying ‘On Demand’ the box shows PPV options instead.
Interactive
Not functional 😦
Settings
Rearrange Channels
ntl had the ability for the customer to rearrange the channels in their EPG, allowing for channels to have their own number. This feature was removed when they migrated over to the Telewest based UK1 software
ntl CR3 change channel numbers
I can soft of understand why the feature was cut, in a family household one could easily rearrange the channel numbers which would cause issues with other members trying to figure out the channel numbers, and probably resulted in increased support calls from customers trying to figure out what had happened to their channel list.
ntl CR3 video
Changing the picture settings
ntl CR3 audio
Never seen this before with digital TV, the ability for the box to sound an alert, with Sky boxes you can only sound a beep, and that’s only if there’s an error or if there are subtitles on programme being watched. Three alert sounds are available. Sadly this feature was cut when they migrated to the Virgin UK1 software.
Parental control PIN
Favourites
Favourite channels can be viewed in a list form the channel banner
Listings for favourite channels can also be viewed whilst watching a channel.
Error Messages
These were common back in the day 😉
Firmware Update, also appears when the STB is bootingNo listings loadedNo signal being receivedNo Smartcard
I wanted to see if this box themself would still work on a modern Virgin media network. I’m aware that Virgin broadcast all their channels in MPEG4 which this box cannot decode, aside from some radio channels. But I was still interested if the box would work and how it worked, especially in regards to early digital cable TV.
The box itself
Pace Di4001 size comparison with the Pace 2500S5, a typical Sky box of the same era
Trying to get started
So I got off to a rocky start trying to get the box to start up in the first place, since powering it on the display would show PACE followed by TUNE. I figured that i needed to enter the boxes engineering mode to reset something. This provided impossibale since after attempting to enter the engineer mode, the box would immediately show TUNE on the front panel display
i tried different combinations that I found online to get the box to work but nothing was working. Finally i stumbled on a old forum post that held the solution;
So to summarize, If your set top box wont progress past TUNE (shown on the front panel display) and you are unable to enter into the boxes engineering mode, you may need to reset the STB’s NVRAM since it may have become corrupted. This can occur when the STB has been powered off for a while, and the battery has discharged to a point where it is running under voltage. This must corrupt the NVRAM in a way it becomes unreadable to the STB
To recover, you will need to open the box, and pull a red jumper located to the right of a large white Sanyo battery. Leave the jumper out for about 5 minutes and then reconnect the jumper. Power on the STB and hold down the UP and DOWN buttons on the front of the box for 10 seconds. You should see DIAG on the front panel display and the engineering mode should appear after a few seconds.
note the red jumper in the middle, situated between the white Sanyo battery and that big red thing
Doing this will clear the Netid of the box, which the Di4001 boxes are able to set automatically if they are in an original NTL area. Otherwise it will appear as *****
After resetting the NVRAM I was able to get to box to enter it’s engineering screen.
Engineer Mode
From here you can change the default frequency and symbol rate, which the box uses to look for the latest software, and possible where the ntl EPG listings are located. You can also see info relating to the software version running on the box, Memory and flash info
There are a few interesting items here, mainly the memory address section. from here i was able to find out the spec of the box. 0x1000000 converts to 16777216 which I would say is 16Mb of RAM. The Flash storage being 0x00400000 that converts to 4194304 which i’d say is 4Mb.
This model of box does have less Flash compared to the older revisions of the Di4001 in favor of more RAM, maybe the OS is compressed into Flash, which is then extracted upon boot into RAM, and runs from RAM like a Ramdisk. Alternatively, there may be a basic guide stored in flash, with the remaining components loaded from ntl either directly broadcast or using it’s DAVIC modem.
Also it appears this box is the 2A revision of the Di4001. which the boot-loader being compiled in September 2000
If you want to boot the STB without a cable feed connected, hold down the up OR down button on the front of the STB when PACE appears on the display (immediately after applying power to the box), and release until it shows boot, or after 10 seconds. This will skip the default frequency checks and will load the main TV guide interface, even without a cable feed connected.
Doing this trick allowed be to bypass the default frequency check and put the box into some sort of ‘safe mode’, this it it would load the TV guide without having any channels or listings loaded. In this mode the box is stuck on channel 0 and not all aspects of the guide can be accessed.
I’ll put up some screenshots of the guide software up later, if I can get the box to pick up Virgin’s tv guide…
One oddity was the services button on the front panel of the box, now you would think that it would take you to the main TV guide, however it just make the mini guide appear and disappear from the front panel there is no way to access the main TV guide screen…
Another oddity was that pressing the front panel buttons would cause the remote light to indicate, even though you were pressing the front panel buttons and not the remote.
Conclusion
Unfortunately I was unable to get the box to tune into any frequency, never-mind booting with some sort of TV guide. At first I assumed it was because the network information Virgin Media broadcast in my area was not in a compatible format, or that the box was looking for something that Virgin have since removed from the stream, however I am now convinced that the tuner in the box is most likely faulty, since entering correct frequency’s in the engineer screen yields no change to the signal levels, even after removing and reapplying the coax cable.
Also since the box is running relatively old software (from around 2005), it’s likely the box was an ex-subscription box that was never returned to ntl, or may have had it’s flash chips modified to be read only, preventing a software update from taking place.
Lifting the lid
Di4001 inside
Compared to other set top boxes of the era this ones quite busy inside considering it’s supposed to house a digital cable receiver and a cable modem in one enclosure. Ill try my beast to break down the individual processors this box contains;
MPEG2 decoder
The main decoding processors, the one on the left (C-Cube 600L) is the MPEG2 decoder, not sure of the one on the right?
Hitachi SH3 CPU
The one on the left is an Hitachi SH3 processor, if you’ve ever opened a Sega Saturn or a Dreamcast you should be familiar with the Hitachi CPU’s. The one on the right is a mystery, its branded as Pace but I cannot find and information online regarding it. I suspect its something to do with Nagravision based on the fact its near the smart card area. Maybe Pace had to licence their own Nagravision descrambler?
C-Cube Avia-inx – Handles DVB-C demuxing from the tuners, Ethernet controller, IEEE1284 controller and has a built in graphics processor. Basically like the northbridge/chipset on a pc.
The system memory, unlike other STB’s of the era this one is designed to be upgradable but seems to be using a proprietary slot. Virgin Media could easily upgrade the memory of these units should the box be returned. This model currently has 16Mb.
DAVIC/DVB-RC decoder, was underneath the smartcard slot so I had to get a funny angle
I believe these are for the onboard ethernet and serial ports
Di4001 front panel
The front panel exposed, note the two IrDA sensors
Rear Panel
Di4001 back panel
From Left – Right
Mains Input
RF Output
Audio phono out
TV and VCR Scart
IR output and input – I think were were meant for external devices such as Tivo or VCR’s to control the STB without any dongles needed, whilst never used by ntl the box does supply power though these connectors allowing the use of red eye dongle
Ethernet – For internet access or LAN
RS232 – Only used for libdebug, never used by ntl externally. Could be used for external input devices like a mouse or keyboard
IEEE1284 parallel port – never used, might be for external disk drives, printers or modems
BT’s main TV service, basically Freeview with a few subscription channels and streaming services built in. You have the option to subscribe to BT’s entertainment packages (which are currently being phased out), BT Sport package, or NOWtv packages which feature Sky entertainment, sports and movie channels.
Whilst this was meant to complete with subscription services from Virgin Media, Sky and TalkTalk, it has suffered due to its reliance on using broadband to stream the subscription channels.
BT Youview had replaced BT Vision, which was also based on Freeview with on demand being delivered using the customers broadband connection, the difference being Vision featuring only on demand content, Youview offers streaming the actual channels.
User Interface
The interface is quite different compared to what Sky or Virgin use with this reliance of pictures/tiles to browse through different programs. All which rely on an internet connection.
The MyTV section shows recordings made, and programes on your watch list. Currently Nowtv supports this, programs you bookmark to watch later will then appear here.
Bad things? Well you cant directly access the apps or recording through the remote, you have to highlight the banner and press left, which I found clunky. They should but colour button shortcuts to access these areas. It would be far easier if you could press the green button to go directly to the apps section, and the yellow button to go directly to recordings then these buttons are unused on the banner. The search option is also redundant since there is a dedicated button on the remote to access search.
It’s worth mentioning also that the remote does not have a dedicated apps or recordings button, so in order to access them you have to press the Home button to call up the banner, then press Right to select MyTV.
TV Guide
The main TV guide interface. The guide is presented using a grid like design which shows programmes broadcast today. You can also navigate to programs broadcast in the future which will give you the option to record or set a series link. The guide can also give recommendation’s on that to watch next and what’s being broadcast now.
Series links can also be set, but unlike Tivo they are not as intelligent. You cannot configure them to exclude certain broadcasts such as reruns, or to record certain seasons. The Youview box will just blindly record whatever is scheduled on that channel. It does ignore repeated episodes broadcast on +1 channels.
Subscription Channels
The NOWtv channels appear here, along with the regular BT channels if you are on one of their classic entertainment packages. These channels are streamed through the IP connection. the selection offered by NOWtv is quite limited compared to the classic TV packages that BT had provided previously, and rumours suggest they plan to adopt only the NOWtv packages, meaning that other channel packages will be discontinued. This wouldn’t be so bad if NOWtv actually offered channels that BT previously offered.
BT Player
BT’s main store for its TV programs where they can be purchased. Some stuff may be bundle into the existing subscription like the AMC programs. This requires an active BT broadband subscription and connection.
UKTV Play
A nice looking service let down by its horrible search interface. Seriously why not just display a QWERTY keyboard on screen? Also you cannot use the keypad on the remote to type in search items, Why?
CBS
Catchup services for CBS’s free view channels, and also include Horror channel also
Britbox
Britbox was a recent addition to the service an is a collection of older programs previously broadcast by BBC and ITV (similar to the UKTV channels of the past) with promise of new original content.
Whilst the interface is nice, the on screen keyboard used in the search is terrible
Netflix
Netflix is fully supported, and it even supports the use of a USB keyboard for its search! Probably the only service on here to actually support that.
NowTV
The main attraction to BT’s Youview, all of the Sky Sports/Movies and entertainment on demand is delivered through here. sadly it’s not a good experience with it being slow to respond for that appears to be a very basic interface. The search keyboard is OK but you still cannot use a USB keyboard, meaning you must use the on screen keyboard, you also cannot use the number keys on the remote to enter letters.
Thankfully you can watch and record the NowTV channels in the actual BT TV guide so you are not completely reliant on the app.
Amazon Prime Video
My5
Works well, but we are still unable to use a USB keyboard in order to search.
itv Hub
Provides access to all of itv’s shows and has a god awful search keyboard where all the letters are on a single row and no USB keyboard support either.
All4
Channels 4’s on demand service (that mysteriously disappeared off Freesat…)
BBC iPlayer
Misc on Demand
Whilst Youview support’s MHEG5 text services, certain streaming extensions are unsupported, instead these services must be accessed via the Youview apps section
Settings
Help & Support
Error Messages
Summary
Ideal as a smart TV platform, as all the popular apps are supported here, this includes all the common FTV platforms (Itv Hub & BBC iPlayer) and the subscription services
Interface is OK, but colour buttons are underutilised, and common features are hidden under menus (like MyTV/Recordings).
Poor support for keyboards for entering text, although Youview supports USB keyboard for control and navigation, this cannot be used to enter text for on demand apps with the exception of Netflix.
Even though the remote number pad has alphabet letters on, this can only be used for the Youview search function, you cannot enter text for the catch up apps using the remote, unless you use the directional pad. This makes it time consuming to enter text.
No support for external hard drives
Unable to stream recordings to other Youview boxes, or to smart TV’s running the Youview app.
Lack of native Wi-Fi support, Ethernet or power-line over Ethernet is the only way to go.
Suggestions
Higher capacity storage options, currently only 500GB to 1TB are available, the latter only for the 4K model
More OTT streaming services like PlutoTV or Plex Live TV, these can add further streaming channels
More subscription channels, although BT seem to be phasing their classic entertainment packages in favour of only NOWtv packages. AMC seems to remain.
Some subscription services are missing like Disney+ and Discovery
More consistency with the on demand user interfaces
The DRX595 – Sky’s basic multi-room digibox also used for Freesat from sky installs. One of the last Sky boxes that have non recording capability. While these boxes have a good selection of channels thanks to the Sky EPG listings, the lack of on Demand and streaming apps are a huge turn-off… unless you have an existing smart TV or streaming STB / Bluray Player.
This is due to how Sky had implemented on demand on their HD platform, instead of each service using it’s own streaming app, all catch and on Demand services use the Sky Anytime system, where programmes are downloaded onto the subscribers box. Since the DRX595 lacks a hard drive to store this on, there is no on demand support
The DRX595 does come with a fully equipped HD remote with the playback buttons, and the front panel indicator shows a recording and playback light, hinting the ability for the box to set remote recordings from another Sky+ HD box. Or maybe the ability to connect an external hard drive to it’s USB 2.0 port?
Search and Scan banner that appears when you change channels, and can also be viewed by pressing select or the arrow buttons on the remote.
Pressing the i button brigs up a short synopsis of the program
When you view an encrypted channel that’s not part of your package, pressing red takes you to the MySky upgrade screen. Unlike other platforms Sky does not hide unsubscribed channels, they remain in the EPG
Viewing upto 8 hours of schedule in advance, despite the digibox having 7 days worth of listings stored in its memory
Pressing help gives you options for subtitles or audio description.
TV Guide
Tabs are used to switch between the different channel guide categories. There’s a dedicated guide for the local channels but since there is only one local channel I’m not sure of the purpose of this?
Search
The search feature, you can use the remote or the original Open/Sky keypad or the Sky Navigator. You will need to reprogram the keyboard in order for it to work on the HD digibox, but all of the alphabetic keys will work.
On the Sky/Open keypad – Press TV
Press and hold Select and Blue together until the red led on the remote flashes twice
Press 2
Press Select, the red LED should flash twice
Test by pressing the Sky button, then try the Tv Guide button
You will need to repeat this procedure if you replace the batteries in the keypad.
Settings
Picture – This digibox can output up to 1080i, 720p or 576 (SD PAL), here it is set to 576 for capturing HDCP purposes. Scart Control set the scart auto switching feature for when the digibox turns on, whilst the video output lets you toggle between PAL and RGB
Sound – The digibox can output stereo audio or Dolby Digital through the optical or HDMI output
Signal – Checks the signal levels, unlike the old Sky guide this display’s information for the current channel you are tuned to, rather than the default transponder
Options
Not sure why this exists? seems to cover the same as the settings menu. Here you can change the subtitles, customize the TV guide and add additional channels
Non EPG channels can be added and view through the options menu, here you can see now and next listings only, and can save up to 50 channels. This is useful to add local tv channels, alternative ITV and Channel 4 regions or services that are testing on Sky.
Parental Controls
Interactive
Sky had previously pioneered the use of interactive TV via its platform, where customers could buy, manage their finances and play games through the digibox, sadly today all that remains here is the My Sky services, which just allows you to view your Sky account through the digibox. No way to play Beehive Bedlam…
Sky News
Sky News previously had an interactive services which shows different, sadly this requires on of the more later SkyHD or SKy Q boxes.
BBCi
The only digital text service remaining on Sky, BBCi just displays news and weather forecasts. The service is designed for both HD and legacy SD digibox’s.
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