
It's very impressive.
For THEORETICAL work.
The Big Bang Theory Season 4, Episode 3

Now to tell you about
the Theoretical Physics Department...
The Big Bang Theory Season 2, Episode 6

...THEORETICAL physics is... What's the word
I'm looking for? Hmm, cute.
The Big Bang Theory Season 4, Episode 3

Senior THEORETICAL particle physicist
at CaITech, focusing on M Theory.
The Big Bang Theory Season 3, Episode 14

What would a THEORETICAL physicist
understand about an experiment anyway?
The Big Bang Theory Season 10, Episode 4