I have a HP-T5054 mounted on the wall. It was working fine. I know have a black rectangle in the center of the tv approximately 27 x 15 inches. At this point, it only seems to occur on channel 2 and will go away for about 45 seconds if I hit the channel 2 button or change the station monemtarily. If I watch a different station, it doesn't occur. Any suggestions?
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