I had my previous Tivo box for 5 years and I was very happy with it. This particular machine promises that its dual tuner technology will allow you to capture two channels at once. An exciting promise, but it doesn't deliver. Getting a blank screen on one of the channels is the most common problem Tivo owners have - check any Tivo bulletin board. The worst part is that the two channels will be working fine and then you discover that it hasn't recorded programs because of the dual tuner.In addition, I've had far more trouble connecting to the Tivo service through this box than I ever had with the previous box.I've disconnected my cable splitter. I'm just going to use it as a single tuner box. I hope the connection problems don't continue.I miss my old Tivo.Update - March 2009It works fine as a single-tuner Tivo. I haven't tried the double tuner since I bought it.