Hello all, and thanks for having a forum like this to help people like me out. I recently purchased a Samsung LN-S4695D TV and had DirecTv installed a few weeks back. Now I knew getting into it, regular SD channels would not look great but I didn't think it would be this bad. My TV supports 480i/480p/720p/1080i/1080p but for some reason, when I switch to a 480i/p format on my DVR, my TV says "No Signal". I verified that my TV was capable of running 480p by connecting my PS3 into it and playing a regular DVD. Pressing the "info" button on my TV's remote tells me it is running at 720 x 480p so I know it is indeed capable of it. Is this a common problem? Is it my TV's fault or my HR-20's? Also, my HD channels look very washed out with alot of noise in the background. Blu-ray and HD-DVD movies look great on the TV but watching shows like Planet Earth on HD was quite disappointing to see so much pixelation during scenes with alot of movement like birds flocking together. Am I expecting too much from DirecTv's HD quality? Thanks for any help or input from y'all, I'm at my wits ends.