I wanted to pass on my thanks to the Tivo Doctor in Australia.
I've been able to keep two Tivos up and running that were showing signs of drive failure and a blown power supply.
Darren King is the Dr and it's great to have someone so friendly and technically astute to keep Tivos alive on both sides of the Tasman.
So if your Tivo is nearing its lifetime end, give the Tivo Doctor a try and keep your Tivo alive and well.
There is little if any local Tivo support and I'm so glad I gave it a try to keep mine going - email The Doctor here:
tivodoctor@gmail.com
For the record: I have no affiliation with The Tivo Doctor, I'm just a happy customer that is so relieved I could get mine fixed.