Thanks, I knew that they were available, however, I had not gotten around to going to ATT store and picking them up yet.
As I said, the DVR and one of the HD receivers are at a height and location that the dog or cats seems to like to block all the time, so RF is something I really want / need. The fact that they don't need an antenna like my old Dish setup did is even nicer. (D* never seemed to need an antenna either, at least I went for a few years without one. )
I think 1 model did need a antenna, the rest were internal.