Apologies... thought it might have been better to jump on an existing thread rather than create another of the same issue sorry. Doh!
Anyway, the TV picture can be fine for a few days or even a week but then it starts getting really distorted with green squares and the sound cutting out. After 10 mins or so it'll go completely off. Some channels when flicking through won't load but some will. Such as all BBC channels not working but E4 does?
As mentioned, a reboot sorts it out but it'll return. Calling up and web chat didn't prove successful today. Help.