I've had my Samsung PN50C6500 plasma now for around 6 months and I just noticed it buzzes. I recently moved it out of my livingroom and into a smaller theater room and im thinking it always buzzed but i didnt notice it because of it being in a larger room. Even with the surround sound going my ear can pick up on it and its driving me crazy. Is this a manufacuter defect or is this one of the draw backs of owning a plasma? Would having it calibrated solve the problem? Also noticed that burn in is an issue even if paused for a very short time. Any help and or input would be appreciated... I'm thinking I should have bought the G20.....thx