I have a Sony 46" LCD Bravia TV. I have had it for about a year. Im not sure when it started, but there is a purple bar that goes horizontally across the screen at all times, and there is an annoying buzz through the speakers. I have tried millions of sound adjustments but nothing fixes it, and i just dont know what the hell to do about the bar. Does anyone know if this is something that I can fix, or is a geek squad guy going to have to come out and look at it?