You can try forcing a few Tivo Service Connections. Don't forget to force connections on the other Tivos on your account/network. The other Tivos need to connect to acknowledge the new addition.
Series 2 (PLS, sold)
TiVo HD 1TB (157 HD Hrs, PLS, "652")
Roamio! Oh, wait, Its Juliet!
The TiVo Apocalypse begins on Sat 2013 Feb 16 00:00 GMT!