I set up the converter box on my parent's TV several months ago. They have started having reception issues in the last two weeks. I visited their home myself to see what was happening. The main problem relates to watching the local CBS channel. I have it set for the SD version of that channel. During the broadcast a black rectangular block appears in the screen It appears as though the digital signal for that portion of the screen is blocked out. It goes away during commercials, go figure! I can change channel then switch back and the picture is full screen for a few seconds, then the black rectangle comes back. The rectangle accounts for about 20% of the total picture area. The rest of the area is very crisp and clear. Any ideas? They have a motorized fooftop antenna that they aim in specific directions to get best reception. This seems to have no affect on the black rectangle.
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This worked! Thanks for the help!
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