Re: Black screen, On demand stops after 2 minutes and Support is poor
I think you've got a couple of issues here.
Firstly C133 - try the advice on https://www.virginmedia.com/help/virgin-tv-error-codes/c133 but this tends to be a network connectivity issue. How is your V6 connected to your homehub? Ethernet is best. If you follow Home > Help & Settings > Settings > Network , in the top-right what is reported and does your box show connected?