I have not watched SD programming since I went to HD service in 2009. Today I looked at a few of the channels since there is a little bit of discussion about the SD pictures improving. I could not see it. However, I did notice that the programming seemed slightly blurred as always. I took my TV remote and adjusted the Sharpness of the picture. For the HD it was all the way down to 20 and looked vey good. If I had it up above 60 the picture for HD started to look "grainy" is what I call it. For the SD pictures 60 to 80 for the Sharpness actually looked pretty good. It took out almost all of the blur. The pictures that have the black bars all around are the clearest ( I do not stretch them to fit the screen ) I run Native ON with Pillar Bars and have only the 720p and 1080i checked for resolutions. This makes 480i programming come to the TV as a 720p format. My TV is a 1080p model. If someone watches SD on your HD TV and HD receiver, you might want to experiment with the sharpness control to see if it makes any difference for you.