I would appreciate some help. I have a new Sony Bravia LCD, with a lower-end Sony home theatre system and DVD player, as well as a PVR cable box.
When I change channels from a non-HD channel to an HD channel, the picture goes black (I can hear the correct channel, just no picture). No matter which channel I turn to after that, the screen remains black. However, the screen comes back again if I turn the TV off and on.
Any idea what I need to do to get my HD picture to come through, without turning my TV off and on.
My girlfriend (who I must credit for having more patience than myself for this one) figured it out. She changed the "user settings" on our PVR cable receiver (Motorola DCT6400) to:
TV Type - 4:3 DVI/YPbPr Output - 1080i 4:3 Override - off
Hopefully your cable receiver's user settings are similar.