I have HD service from Comcast and it's fantastic. I get these HD channels: FOX, ABC, CBS, NBC, PBS, INHD1, INHD2, Discovery HD Theater and ESPN HD. As good as DVDs are, HD is in a class all by itself. I use a splitter with cable, so that I send one cable split to the Comcast STB for digital channels and one cable split to the tv for analog cable channels. Everything looks awesome. What's so great is how well the analog cable channels look all by themselves with DRC at 960i, but then I switch to an HD channel and WOW!. The colors and the detail is unbelieveable.
Matt - I can't wait to hear what you have to say after you get HD. I don't think you're gonna be able to contain yourself.
nick2003 - the coax splitter has to be rated at least 1GHz.