I have an LCD HD TV and can receive HD channels OTA as well as through cable. I've noticed that some of the channels have the audio slightly behind the video. CBS seems to be the worst with this, while FOX doesn't seem to have this problem at all. If there is a basketball game on CBS, it's really annoying to watch since the sound of the ball hitting the court doesn't match up. Is it the same regardless of if i view the channel OTA or on cable. Is there something wrong with my tv? Or is this just a problem with their signal and I have to deal with it?