I've had this pixellation on my sky for a while now. It seems to be mainly when you get an all white background, like the DFS adverts. There is like a blocking. It wasn't really a problem with my crt, but pretty fustrating on my plasma. I've tried changing and rerunning the scart leads, and know it isn't a TV problem as the inbuilt freeview tuner gives a perfect picture. The picture is also the same on my kitchen LCD running from the RF2 output. Any ideas anyone?