that people would still
call me Professor Proton
The Big Bang Theory Season 7, Episode 7
Professor Proton is coming to our house.
The Big Bang Theory Season 6, Episode 22
"The Effect of High Energy Muons
on Proton Pion Scattering
The Big Bang Theory Season 12, Episode 9
Yes. Sorry, tell me about Professor Proton.
The Big Bang Theory Season 6, Episode 22
Hey, I got an email
from Professor Proton.
The Big Bang Theory Season 7, Episode 7