Ok got mine today from buydig.I ordered is on Saturday and got it on Thursday.Great tv.Picture is pretty damn good using some gold s-video cables for satellite and dvd.It was all good(picture and no smudging)until I put the heat on in that room.Then walla all of a sudden on the right and left side of the screen I noticed it.I shut the heat off and within 3 to 4 minutes it was gone and picture was back with no smudging .You could almost watch it disipate.The set has a December build date on back and no stickers over or under that one.I have done alot of reading on this model and decided to test.This is what I came up with.