You were completely right! I was bored tonight and remembered I had a very long coax cable in my closet, so I pulled it out and ran it to my TV in the other room. It gives me all my locals in HD, plus some additional channels that I can't even identify. Now I feel like an idiot for watching the Cubs games in SD on my dish last year. I'm still going to have Comcast come install basic cable for me, since it won't end up costing me anything extra, but I won't need the HD box so that saves me $7/month and the clutter of an extra box. One last question... does anyone know how I can identify what these channels are? Most of them are fairly obvious, but there are some channels playing movies and I can't figure them out. Thanks!