
- Well, yeah.
- I'm a THEORETICAL physicist.
The Big Bang Theory Season 1, Episode 15

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

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

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

She thought if I failed at THEORETICAL physics
that I should have a trade to fall back on.
The Big Bang Theory Season 2, Episode 10