I bought a new TV yesterday, connected the Tivo box up and it was working wonderfully well last night.
I got up this morning and switched the TV and Tivo box and BBC1 BBC2 and STVhd are all working but with no sound. Most other channels are working perfectly, picture and sound. In My Shows only the ones that haven't been recorded from BBC1 or BBC2, great picture but no sound. Recorded from Questhd last night, great picture but no sound