Wait up to three days for a response from a member of the Forum Team here (they can sort it.) Or pop a call in about it - do so by ringing 150 from a VM phone or 0345 454 1111 from any phone -> Option 1 -> Confirm your details -> Enter the menu -> Option 2 (Faults) -> Report a T.V. fault. Let it do any automated checked if prompted, it will eventually put you through to an agent. Ask them to send signals down to the problem STB.
You can also ask for support via the web chat between 8AM to 8PM M-Sa from a desktop or laptop: TV -> Loss of my TV service -> Chat online. If it says all agents are busy, reload the page every 3 minutes and check again. Ask for signals to be sent down to the problem STB.
Edit: Fast responses
- - - - - - Any opinions expressed by myself are entirely my own and do not represent Virgin Media in any way.