I have to tell you that while I do have
a THEORETICAL understanding...
The Big Bang Theory Season 2, Episode 5
...to succeed in THEORETICAL physics.
The Big Bang Theory Season 2, Episode 6
- Well, yeah.
- I'm a THEORETICAL physicist.
The Big Bang Theory Season 1, Episode 15
So now let's bring out THEORETICAL physicist,
Dr. Sheldon Cooper!
The Big Bang Theory Season 6, Episode 18
It happens to THEORETICAL
physicists all the time.
The Big Bang Theory Season 5, Episode 17