I suggest PyTivo. It is totally free.
Desktop free only will work with selected files with extensions, .tivo, .mpg, and only a few more, where Plus has more.
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!