(very DEEP voice):
Cookies!
The Big Bang Theory Season 5, Episode 23
(very DEEP voice):
Leonard, I am your father.
The Big Bang Theory Season 5, Episode 23
(THX'S "DEEP NOTE"
PLAYING ON SCREEN)
The Big Bang Theory Season 2, Episode 9
You know, DEEP sea divers
holding their breath
The Big Bang Theory Season 10, Episode 16
Despite my DEEP love of chess,
lasers and aerosol disinfectant...
The Big Bang Theory Season 2, Episode 18