I just bought a Toshiba 42H81. If I watch a widescreen movie (2.35:1), I obviously get black bars at top and bottom, and I assume that is not a burn in problem. If I watch 4:3 TV in normal mode I get grey bars on either side. Am I risking any burn with this? Is there a way to turn them off so they are black? Not too much of an issue, since the recommended stretch mode is pretty OK. Overall, I am pretty happy with the set. I watched Tombstone (Vista Director's Cut DVD with my also new Tosh 4800) last night and I have never seen such a good picture on a TV.