My Plasma was replaced last week, and I have been secretly thinking that some things looks a little blury.. Things in the forground look pin sharp but the backgrounds look wrong. I can't put my finger on it, but they just seem to be 'out of focus' I also noticed that the 'DOGs' on some channels looked strange.. Its hard to describe, but the horizontal edges of the logo were dupicated, one pixel underneath/above. After catching up on a few episodes of Big Brother (I am ashamed to admit that), I was sure that something wasn't right, as when there was a long shot of things going on in the background, it looked a mess. After a bit of thinking, I wondered if this had anything to do with the vertical size/position.. After all, you are converting a 600 line PAL signal into a display with 500 lines. Its therefore possible that a pixel in the Analogue PAL output could appear across 2 pixels on the Plasma. I started to increase/reduce the size/position of the picture and to my surprise, the phenominon with the DOG changed.. In some positions it was the top of the logo which was affected, and other times the bottom. I will have to do some more tests but I think I am on the right lines. So. If you are not happy with your Sky picture, trying changing the position/size of the picture (on the Plasma). This might be the reason why some people are very happy with their picture of Sky (like I was before) and otheres arn't. Let me know if this helps.