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TV goes black and then comes back on

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TV goes black and then comes back on

Hi, I am experiencing black outs on my TV. I'll be watching a show, the TV will go black (with no sound) from 2 minutes to 10 minutes then come back on all by itself. I can run the TV guide so I know the entire TV does not shut down. It blacks out on my main box (no message) but pixilates (with signal interruption message) when I tried the small box! I did unplug, had signal sent and even had a tech come out but it continues to do it. I found out my neighbors on both sides of me are having the same or similar problem. This is very frustrating especially since I have been a loooong time Comcast customer and have had this and many other problems before! I will call and have a technician come out again but was wondering if you have any suggestions? Thanks SC
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