This sounds like a cable company problem. Pixelation is caused by a low signal level, any lower and no picture. It could be caused by an intermittant in your wiring but that's not going to only affect one channel. I actually notice this here also (Cablevision) and it looks like a problem with the sat signal.

If you are concerned call it in and have them send out a tech who will check your levels.

-Hal


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