Those dongle are most likely bluetooth not RF, so the Roamio's remote will not work with it, but it will work under IR mode (Hold TiVo + C until red light blinks, to return to RF, Hold TiVo + D until yellow light blinks.)
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!