I have a KP-57WS500 RPTV I bought at Best Buy almost 2 years ago. I have had the flicker problem or whatever, and contacted Sony to come and repair the TV maybe 8-10 months ago. I have noticed on black screens that there are several blue lines arcing across the screen. They are concave down if it matters. This happens on all sources, so it shouldn't be my cables. Also it appears when side-by-side picture is up the TV picture is skewed clockwise a couple of degrees. This is obvious by scaling on side up and down. The question is, should I call Best Buy before my extended warranty wears out, Call Sony and have them set something up again, or call the company that made the repair to fix it. I was hoping for Best Buy and they would upgrade me to the new model, but I am afraid that someone from the "Geek Squad" will come and mess with it. Anybody else have experience with replacement from BB. I am thinking they would have to upgrade me since the other model is no longer available.