Make sure all your Tivos have been subscribed to Tivo service, and under Device preferences of your account on tivo.com, the checkboxes are checked. Finally, make all your Tivos make a Tivo connection.
Adding a Tivo, you must make the other Tivos connect to service to log in the new addition, for transfers to work between them.
Original S1 (Recycle Heaven)
Series 2 (PLS, sold)
TiVo HD (XL, PLS, "652")
Juliet Basic (4XL, PLS)
The TiVo Apocalypse begins on Sat 2013 Feb 16 00:00 GMT!