To access the engineering mode, unplug the Virgin media Tivo box and hold down the Up + Down arrow buttons on the front panel to the STB (not the remote), continue holding until Starting Up disappears off the screen, typically around 50 seconds.
Screens were captured through the HDMI output, I’m not sure if tis will work via the Scart connection.
The first frequency the tivo checks when it is booting up, typically contains firmware updates
STB information and local network ID
Various MAC and IP address used by the STB networking interfaces
Information found in the DVB signal information tables
For tuner 2
Hard disk information