I've got an odd problem with the Guide. As long as I've had the TiVo (at least seven years), I've been able to set the guide to check my Favorite channels for any sporting events going on. A much appreciated features. A few weeks ago, however, when I searched for sports it would say that "no channels match the current category filter and channel list." This despite the fact that whole channels are devoted to just sports, and I was watching one at that very moment. I tried switching from favorite channels to all channels, but no luck. I tried searching just for sports/baseball and there was nothing. I tried sports/football and nothing (though last week that worked once). Sports/tennis worked fine. I can search for other things (movies, for instance) without any problem. Does anyone have any idea what's going on?