Since i'm still waiting for my tivo to come, got held up somewhere with fedex, argh!! I am obviously anxious to play with it and get rid of this 8300. I understand, from reading here, that the new HDUI is slow. How does it compare to the directv HR2x UI, is it slower or on par with that? I'm expecting it to be a lot slower than the 8300 because this thing has nothing to slow it down.