Buying new tivo, transferring subscription question

I'm new to the Tivo world and I have a few questions about upgrading my current tivo.

About a month ago I bought a Series 2 DT not knowing the Tivo HD was coming out so soon. I purchased a 3 year prepaid subscription along with the Tivo. I'm really interested in buying a Tivo HD within the next month and I have a couple questions about the steps to take in doing so.

1) Is it possible to have two Tivo's using only one subscription?

2) I will most likely sell my series 2 tivo so I was wondering if it is possible to transfer my subscription to the Tivo HD and what I would have to do to do it. (call,do it online, ...)?

Thanks for any help!

 

Oh Nevermind, I found the answers on the Tivo support page. I guess I didn't search hard enough. Thanks anyways.