Between these two receivers, I have to assume the HR20 series is the "higher end" one, yet just one of my pet peevs about the HR20 is the lack of OTA scanning feature that the H20 has. The H20 scans while the HR20 uses Directv database of channels. Why would the H20 have it and not the HR20? I would love to have my missing sub-channels that my Tivo brought in. And is there something Directv can do about it?