
He's an experimental PHYSICIST.
The Big Bang Theory Season 6, Episode 5

You're a PHYSICIST.
The Big Bang Theory Season 11, Episode 15

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

Of course not.
I'm a theoretical PHYSICIST.
The Big Bang Theory Season 2, Episode 23

No, he's a theoretical PHYSICIST
at CalTech.
The Big Bang Theory Season 9, Episode 8