Hi, we have two Tivo boxes in our house, one is the Wife's and one is mine. The Wife's one about a month ago started pixelating, sometimes it's that bad she cannot watch it, mine has never done it. She has tried switching off numerous times still the same. I have tried the following.
Different HDMI cable.
Different F cable from splitter to her TV.
Different power supply.
As said it only does it in her room never in mine, both TVs are Samsung both boxes are Tivo.
I swopped the boxes around when my one was in the Wife's room no pixelating. But what did happen was before i disconnected the box it was recording a programme, when in the Wife's room it carried on, then when back in my room it carried on. Looking at the playback the first section of the recording was good, when in the Wife's room the playback was pixelated but the third section recorded in my room was fine. Totally lost now.