I just got my 622 installed yesterday and I'm impressed with the SD quality. HOWEVER, it does depend upon whether you watch it in the normal screen format or the stretch screen format. In the normal...you will see black bars on both sides of the picture, but it looks better. I personally don't mind the slight picture problems with the stretch format...it bothers me to have a normal SD screen size on a 37" widescreen. When you switch to HD programming, though, be sure to go back to the normal format...otherwise you will lose some of the picture.