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tv picture keeps going out for small moments and then comes back fine

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My picture keeps sporadically going out.  It makes a loud static sounds and the screen goes black.  This lasts about 10 seconds and then the picture comes back.  There is no error message just black screen.

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This is most likely a signal problem. If connectors seem secure, cables in good condition, and splitters in spec, it would be best to call Comcast to arrange a tech visit.