periodically the sound {audio} starts buzzing with a static sound.. that sounds as if you were @ a bad drive thru fast food place...I unplug it for about 5 minutes and plug it back in and its good to go ..until the next time it does it. Its very annoying anyone else out there have a problem with that....its a 1999 RCA ..model # P52928 ...... 52 inch.... any help would be appreciated thanx