
...I would've become a THEORETICAL physicist.
The Big Bang Theory Season 8, Episode 7

So now let's bring out THEORETICAL physicist,
Dr. Sheldon Cooper!
The Big Bang Theory Season 6, Episode 18

as a THEORETICAL
physicist,
The Big Bang Theory Season 7, Episode 20

I have to tell you that while I do have
a THEORETICAL understanding...
The Big Bang Theory Season 2, Episode 5

I am a published THEORETICAL physicist
with two doctorates...
The Big Bang Theory Season 2, Episode 2