OK, need some help here. I just bought a KP46WT500. Right now I have regular analog coaxial basic cable going into the set. And the picture sucks, very grainy. My questions are: 1. What can I do to make the picture better with my current set up, if anything? What kind of improvement will I see? 2. If I go the digital cable route, is the picture still going to suck? I live in downtown Chicago and have comcast cable. What kind of improvement will I see if I use an S-video cable from my digital cable box into my TV versus just using coaxial. 3. Comcast told me they are rolling HDTV out in June. When cable companies say that, what do they mean? Is it 2 channels, 10 channels, 50, or all of them? 4. Should I return my set and get something with a tube. They seem to have a better picture out of the box right?