I would try the BluRay, but from what you are saying, it sounds more like a feed issue than anything with the TV. For the set to work fine on one channel and subpar on another leads me to believe that your cable service is inconsistent in quality from channel to channel. Mine definitely has that problem, but the anomalies I get are audio instead of visual.
None of the problems show up when I watch DVDs.
I have a PAN 50PZ80U and I am having some issues with screen refrersh. When there are fast moving scenes (in sports or cable movies) the screen becomes blurry and this happens for most of the channels. Some channels like espn and fox work fine. I have noy tried blue ray movies, but I am thinking whether the refresh issue could be due to the hdmi cable I am using. Any other suggestions?

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