I have a TiVo Series 2 box. I woke up this morning to find clocks in my house were flashing. Apparently we lost power around 2am, based on the time showing on the flashing clocks. I don't know how long it was out. When I checked this afternoon to watch a program I had set to record this morning it was just static. I checked my cable box and found that it was off. After turning it on I was able to watch tv normally. This evening I was watching a ballgame, and realized that the TiVo record light was on. Checking the settings, it was supposed to have changed the channel and recorded a different show. Instead it recorded the ballgame I was watching. I checked to make sure the blasters were still attached to my cable box, and they were. I did a restart of the TiVo, and that didn't help, so I did a Repeat Guided Setup. When it got to the part which says something like "Do you see a picture?", I had no picture (or sound). I checked my cable box, which seemed fine, but to be sure I unplugged and replugged it again. I am able to watch tv normally with my cable box. When I go to Watch Live TV from TiVo Central I get a blank picture and no sound. I am able to watch the tv shows I've already recorded, so there's no problem with the TiVo to tv hookup. I tried setting the TiVo timer to record a show. At the specified time the TiVo began recording, but it did not change the channel on my cable box to the requested channel. I physically changed the channel on my cable box but I get no picture or sound regardless of the channel. All cables are secure. Nothing was changed in the setup. It worked fine yesterday, and now doesn't. Can someone tell me what to check next?