"Many, many people can't get local OTA."
So, the majority of people living in Detroit, Atlanta, Boston, and the other HD local markets who already have HD recievers can't get local HD with their existing boxes using an OTA antenna? I find that hard to believe. I'm in the 51st DMA and I get Boston and Providence locals with my H10. People living in Boston should be able to hook up an indoor antenna to their existing HD boxes and get HD OTA channels providing all of the networks without the hassle of buying and installing new boxes and dishes. Am I missing something?
"is Comcast that bad ?"
I don't live in a Comcast area, but, Comcast does have NESN HD which should get you the Redsox, Bruins, and Celtics games in HD. You will pay more for service comparable to D*TV, from what I've heard.