I had this HD Tivo installed (the installation took 2.5 hours...COX ineptitude). Last night I turned on the tv, it was recording the news (as indicated by the red light), but the live TV was completely black (no show information either). Changing the channel gave the BAD BOING sound, and had no effect. Changing the tuner was black screen too. I have had to reboot a couple of times before (I get the cablecard error screen), so I tried rebooting to see if it helped. Well, after waiting 5 minutes to reboot, the live tv was back. The odd thing was that the channel I was recording WAS recorded. There was video on the recorded news program. This seems to be a buggy device. Its kind of a pain, especially for my wife who loves the EASE of Tivo, and is technologically incapapable of troubleshooting issues. She wants it to just work, which my S2 Tivos always have. ANy comments, or similar experiences.