Hi Everyone! Ok, I've done a preliminary search and can't seem to find the answer and I'm a bit stumped. I realized recently that my cable company (Cox in Fairfax, VA) offered HD locals via basic cable (which is what I recently downgraded to). I plugged my cable line into my television's receiver and *poof* got all the local HDs perfectly. On my Tivo HD, though, I do a channel scan, it sees a whole slew of digital channels, but I can't see any of them! I tune to the channel and all I get is a blank grey screen! Is this typical, or is there something wrong with the tuner? It's my understanding that cable cards are needed for encrypted content, but that un-encrypted content can be displayed, just not mapped on the guide (which I can live with for now). So, I'm just trying to troubleshoot why I'm unable to see these channels at all? Just for the heck of it, I even plugged the cable line into the antenna line, and re-ran the guided setup as cable/antenna. Suprisingly, the Tivo saw all the digital channels, call letters and all. But again, no picture. Last night, I was able to see the fox and cbs channel after switching back and forth to the channel a half dozen times, but nothing since. Any ideas would be appreciated!