Originally Posted by calstudios
So if I buy a Tivo HD off ebay, can I move the upgraded 1TB drive from my current THD to the new THD? I understand that I could/would lose my content, but would the drive be recognized?
Is your current HD dead or dying?
If not, you can use Tivo Desktop to backup your shows to a (very large) partition on your computer (or possibly an external drive connected to the computer, I haven't gotten that far in my experiments yet).
When you take a drive out of particular model TiVo and put it into another of the same model, you'll probably get an "error 51" or at least a complaining screen.
You'll have to do a "clear everything" so it can marry itself to the new motherboard, and then you'll have to run guided setup again.