When I am on the HD channels, sometimes after awhile I will get snow, or a green screen, or just colored lines across the screen. Sometimes its after 5 minutes, 10 minutes, 2 hours, and sometimes it might work just fine. And sometimes the audio works, and sometimes it doesnt. Usually, I have to go behind the TV, unplug it and the HDMI cable, and then it will work OK again... but then who knows? It happens again in 5, 10, 100 minutes. Ive already got a new HDMI cable, so I know its not that. Its either the TV or the cable service. Any suggestions????
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