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Tv won't change channel and is stuck on blue screen

Last response: in Home Theatre
April 8, 2012 6:14:57 AM

I have cox cable and I got a new tv today and I pushed a button on the remote that said on off and I thought that was the off button and now it is stuck on a blue screen and says no signal in upper right corner ... Did I mention it won't let me go to cable .... Please someone help me I don't know what to do :sweat: 
a b x TV
April 12, 2012 4:03:34 PM

Button on what remote? The TV or the cable box? You may want to have a friend come over that knows how to hook up TV connections and select sources.