I have a Tivo HD that freezes. It started this spring happening once a month, but now it's up to daily or so. When it got to once a week, I started trying to do something about it (new baby, little time for non emergency stuff). I've gone through the whole list of everything I could find to try. Kickstart 54 passes all the tests. 52, 57, and 58 yielded no change. I assumed it was just the drive anyway so I used DVRBARS to do a truncated backup and a full restore to an extra drive (came out of a fully functioning NAS). Tivo behaves exactly the same regardless of which drive I am using. I've also done a complete Clear and Delete everything and repeated guided setup. Still exactly the same. The voltages test out to 12 and 5 and all the capacitors look perfect (no bulging or discoloration). The drive in it when this started was a WD Cavier Green 1 TB drive with all the things done to it you're supposed to do before using it in a Tivo. I replaced the original drive almost 3 years ago when my expander failed. I has lifetime service, so I'd love to get it fixed (although I'd also like a Roamio). Does anyone have anything else I should try? The only thing I can could do at this point is try and get Comcast to put in a different cable card, but I've never been convinced that a cable card caused any issues like this. I could be wrong there though. One weird thing is that it only ever seems to lock up when you aren't watching it. I'll come back, turn on the tv, and the screen with be frozen and the Tivo remote unresponsive. It always boots back up after you unplug it and plug it back in. Any help would be appreciated.