I am looking to upgrade from my DirecTivo SD to an HD solution. I like DirecTV, but I am having some potential issues with OTA locals. I am currently looking at all of my HD options. One of my favorite features of my Tivo is having the two live buffers simultaneously so that I can switch back and forth easily between tuners and watch two programs (read: football games ) at the same time. (I do not want a PIP solution.) Does anybody offer this besides Tivo? My research is making me think not. Any help would be greatly appreciated!! P.S. My cable alternatives seem to be the SA 8300HD or a Moxi box.