
Hey, everybody.
I'm Professor Proton.
The Big Bang Theory Season 11, Episode 15

this Professor Proton thing
pretty hard.
The Big Bang Theory Season 7, Episode 22

- Professor Proton.
- You're kidding.
The Big Bang Theory Season 6, Episode 22

No, they're watching
the new Professor Proton.
The Big Bang Theory Season 11, Episode 15