for some reason, when I am trying to watch a dvd, my tv has a picture that keeps flipping, like the televisions of the fifty's. I just can't get it to stop so we can watch movies. Anyone know what would cause this to happen and how to fix it? I thought it might be caused by the tv itself but it is not. The regular stations work okay. It only happens when I try to play a movie in the Koss ks3102 system.