I had to give up my HD TiVo about a year ago (long story), and now have Comcast and their HD DVR, and right now I'm p o'd beyond belief. There are tornado warnings in my area, and the DVR is unresponsive because of them. I'm trying to watch the local station that has the best coverage, but I get a gray screen, then the tornado warning, then it changes the channel to the ABC station, but with no audio and broken up video. ABC isn't even showing the live storm tracking. Thanks a lot Comcast, for preventing me from seeing if I'm in real danger.