They cast the new
Professor Proton.
The Big Bang Theory Season 11, Episode 15
No, they're watching
the new Professor Proton.
The Big Bang Theory Season 11, Episode 15
Yeah, and my eighth favorite
episode of Professor Proton
The Big Bang Theory Season 7, Episode 7
Nice to meet you, Professor Proton.
The Big Bang Theory Season 6, Episode 22
Wil Wheaton wants you to be
on Professor Proton.
The Big Bang Theory Season 11, Episode 15