How did you figure out
that it was the GEOLOGY lab?
The Big Bang Theory Season 7, Episode 3
Geology. Oh!
The Big Bang Theory Season 7, Episode 20
Oh, uh, Stuart,
uh, Bert from the GEOLOGY lab
The Big Bang Theory Season 10, Episode 6
Stuart, this is Bert
from the Caltech GEOLOGY lab
The Big Bang Theory Season 10, Episode 6
Hey, you want to hear
one of my GEOLOGY songs?
The Big Bang Theory Season 11, Episode 13