Originally Posted by occraig
what if the Tivo is a premier and already has an upgrade hard drive I bought on ebay? could I do it then?
I refer you to my previous answer about how the recordings are tied to the TiVo Service Number of the TiVo on which they were made.
And to the part about the hard drive itself being tied to that same number.
If you move a drive, any drive, from one TiVo to another one, it has to be the same model number TiVo, and even then it will have to go through a Clear & Delete Everything so as to get "married" to the new TiVo in which it finds itself, which means it'll be the same as a new TiVo, having to go through Guided Setup before you can do anything else, because in addition to all of the recorded shows being gone, all the info about zip code and cable provider and local over the air channels and cable card pairing and Season Passes and Thumb ratings and networking and any options you changed from the default, all of that will be gone.
If you have two TiVos on the same account, both will have the same Media Access Key, and you can set up the free version of TiVo Desktop on a computer and copy shows to the computer if the cable company hasn't set the anti-copy bit for that channel.
Once on the computer, they can be put on a removeable drive and carried to your second location where another TiVo with TiVo Desktop installed can "serve" those shows to the second TiVo.
Above all, do not even think about moving an external drive from one TiVo to another unless you want to lose all of your recordings.
The simplest solution to your problem is not the least expensive.
You'll need a computer running XP or later in each location.
You'll need a TiVo in each location.
You can, instead of using an external enclosure with each computer that attaches via USB or eSATA, if the computer has a spare 5.25 bay, get a mobile drive rack that lets you pop a SATA drive in and out.
Also, better not to be taking your TiVos apart all the time.
And you'll need a current subscription on each TiVo.