First off thanks for anyone who offers any advice I recently purchased a Tivo HD unit. I've noticed that every day or two the cable input will stop working. The Tivo is not locked up, the menus work correctly and you can navigate to Now Playing and other Tivo specific menu functions, but the Live TV is not working. When this happens the screen is black. I have tried the following: 1) Switching channels on Tuner 1 and Tuner 2 2) Go to Now Playing and open a recorded program and then going back to Live TV The screen unfortunately remains black, and now live TV will come in. I have been able to fix it the issue EVERY time by restarting the Tivo. It seems like the last few times it has happened it was working when I left for work, and wife said it went out some time around noon. I'm a bit confused by the matter. I tried calling Tivo and they said it would be fixed when I get my Cable Cards, but I don't think that is the issue. I'm not even using HD. Thanks!!