We have 3 HD tvs all with the same type of HD cable box..All hooked up the same way..Everything was fine until a couple months ago..Certain channels show static lines, some worse than others, and also the sound cuts out for a few seconds at a time..It makes it impossible to watch. TBS is one for example, and one of the Showtime channels..while all other Showtime channels are fine. It is driving me nuts. Not sure why it is happening. Any ideas?
Starting at ont, verify coax connections are tight at every junction point.
Also check for damaged cables or loose connectors.
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