1. No, once a unit has product lifetime it has it for good. They won’t revoke it if you took the other unit out of service at some point. That only applies to plans with ongoing payments.

2. No, you can purchase the TiVo anywhere, then select your plan when you’re activating it. You can get lifetime on a unit purchased from Amazon.

1. TiVo says “If the registered account holder’s Qualifying Subscription is cancelled or otherwise becomes ineligible, the oldest eligible TiVo service subscription on the account shall become the registered account holder’s Qualifying Subscription and will no longer receive the MULTI-SERVICE DISCOUNT.” Does that mean that my second TiVo could somehow become un-lifetimed if I ever cancelled the first, or does this really only apply to monthy/annual plans?

2. To these price plans only apply to a TiVo purchased through the site? I tried look it up on the activation side to be sure, but couldn’t figure out how to look at the price plans without entering a unit number first. I’ve got some Amazon gift certificates I’d love to throw at an HD, but not if that would eliminate the lifetime/MSD option.

Any help would be much appreciated!

And normally they only allow lifetime on new product activations, but you might call and see if you can upgrade your subscription.