Advertisements Hi, I have two Tivo series 2 540s. One of them is fine. The other one seems to lock up once a week. I just got done rebooting it now. My wife was wondering why it wasn't recording Big Brother, and when I turned on the TV, it was frozen. I had no choice but to pull the plug on it. Any idea what could be happening with it? Other than this, it's showing no signs of problems at all.