HI there, this has been going on for a couple of months, it started around the time the main "Network" if you like, channels all went full HD i.e. 101, 102, 103, 104, 105 and these are the ones worst affected, although it is now spreading to others, both live and recorded. Following earlier advise I read on here, every week or so I unplug or turn off at the back, wait a couple or 5 minutes, then turn it back on, usually that stops it for a week or so, although at the weekend it was a couple of days.
Over the weekend it's been worse, with sometimes half the screen pix-elated, not good if you're trying to use subtitles...
Still ongoing here in Norwich area 22 NR7 area. Channels affected this evening are ch4hd, sky one hd, bbc4hd and Quest HD. Sky cinema Disney HD is almost unwatchable so becoming a joke. Contract is up in a couple of months so will ditch and switch to Sky at this rate.
Tech support were no help last week. All connections are tight, hdmi leads changed, other sources checked, different TV tried. Checked coax is not near any power supplies. Issue is worse on one of our Tivos than the other.
Also get short audio drop outs on the cinema hd channels.
Sorry to hear of the problems with pixelation you've been having, are you still experiencing the issue since you last posted on Sunday? We had a fault ticket open but it has now been closed.
We would like this to get this looked into further with our faults team, we can do this via online chat? If thats ok with you, please join the chat, using the box on the bottom right of your screen and the team can get this looked into.