Advertisements Scanned the FAQ's and didn't see an answer to this. I'm guessing I know the answer but nonetheless here is my question. I recently got a DT 80 TIVO box and signed up for a prepaid 3 year subscription for $299. I now see where TIVO is offering lifetime subscriptions for $399. My question is if I upgrade to the $399 lifetime, is that tied to my existing DT box or could I migrate the lifetime subscription to an HD box down the road presuming I bought the HD box from TIVO? Thanks for any info.