Last week, I came home to find my 4 yr old Tivo HD was stuck in a rebooting loop at the "Welcome" screen. Doing a power cycle didn't fix it, but it did boot up after leaving it unplugged for an hour. It ran fine for a few days and then it started rebooting again. The rebooting seems random, but more than once it has happened as a key is pressed. When it reboots, it gets stuck in a loop until I unplug and leave it unplugged for a while. I've tried removing the cablecard and repeating guided setup, but it rebooted during the middle of that too. Yesterday, I was finally able to get into Kickstart mode and ran the SMART and the overnight drive tests - both passed. Last night I tried to redo the guided setup with the cablecard inserted and it froze. I gave up and unplugged it. We have a second Tivo HD, also with cablecard, in another room and it is fine. So it's not the cable coming into the house. I'm at a loss and I don't know what to do. I have lifetime on it and it is out of warranty, so it seems that I am stuck with a broken Tivo until an upgrade w/ transfer offer is available. $450 for a Premiere with yet another lifetime via Tivo isn't an option. Any suggestions? Should I just buy a new HD from WK and give it a try? Should I just give up and hope for an offer? Thanks so much for your advice. I've had lifetime on a Tivo since my brother gave me a series 1 nearly a decade ago and this is the first time I've faced something that couldn't be fixed.