My brother has the same model LCD that I have and Comcast. He has no end of problems with his HD channels, and it looks overly compressed to me when he shows me some of his channels.
In fact, every time he comes over and sees what I have on HD, he talks about switching over to Dish. The only thing that had been stopping him was the cablemodem, but he just dropped that to cut his bill down. Makes switching just easier at this point.
