Even though your equipment is in a cabinet, your TV is not and the IR will get to it. No IR blaster in any form it can use.
Series 2 (Retired, now sold)
TiVo HD 1TB (157 HD Hrs, PLS, "S3HD")
Roamio, Oh Roamio!
The TiVo Apocalypse begins on Sat 2013 Feb 16 00:00 GMT!