When you clear BBQ mode, you can Unlock the DLC Announcer that sold on the PS3 and PSV version in the gallery.

Announcer	How to unlock
Kokonoe Announcer	Clear Survival Quiz Level 4.
Litchi Announcer	Clear Survival Quiz Level 1.
Makoto Announcer	Clear Ragna's Story Quiz.
Noel Announcer	Clear Noel's Story Quiz.
Platinum Announcer	Clear Survival Quiz Level 2.
Rachel Announcer	Clear Survival Quiz Level 3.
Tsubaki Announcer	Clear Tsubaki's Story Quiz.