I've read the threads here, read them at the other site, and think I have a handle in this, but wanted to be sure. I have HR10 (just one, sorry, I know that makes me lame), a SD DTivo and a series 1. If I want the new HD channels, I need their DVR. Got it. Their DVR only has one live buffer, with a 90 minute run. (this is the real sticking point for me, I LOVE the dual buffers). Check. The kick in the butt for me, I think is I believe that the new HD Tivo is NOT compatible with DTV, only cable. So I couldn't stay with DTV and Tivo even if I wanted to (other than the rushing towards obsolescence hr10). Is this right? How close did I come? Thanks!