Doesn't it also have HDMI?

The way I've set it up is that when you search for a show, it'll list the show once for however many channels it finds it on. I just make sure I select the one on the HD channel (70, for instance), and it just works. Same for the OTA shows.

I don't know if you watch Dead Like Me (everyone should, IMO), but that show looks fantastic in HD. But the HD show I'm looking forward to most of all this year is, without a doubt, Carnivàle.