Mini will not work with anything older than a Premiere 4/4XL, 4 tuner digital only models. You would have to use another Tivo box with Tivo subscription.
Series 2 (PLS, sold)
TiVo HD 1TB (157 HD Hrs, PLS, "652")
Roamio! Oh, wait, Its Juliet!
OTA! OTA! OTA!
The TiVo Apocalypse begins on Sat 2013 Feb 16 00:00 GMT!