Hi ! I purchased a Tivo HD Model # TCD652160 two and a half years ago and upgraded it myself to a Hitachi Deskstar 1TB drive a year ago. No cable cards are used and it is attached to the TV with component cables. It stopped responding to the "live TV" commands although I could still use the "now playing" list and watch recorded shows. Netflix also worked. I am not sure if it was recording additional shows that were on the "season pass" list. After a week of this I finally rebooted it and it stuck on the powering up screen. Unplugging it does not change that. Kickstart commands would not work. I pulled the drive and ran WD diagnostic on it and it passed all tests. So I'm flummoxed! What could be "broken" that originally only the "live TV" would not work but now I can't even get back to that? Any help appreciated. I haven't tried the old drive yet.