Where is the Professor?
Money Heist Season 3, Episode 8
But, Professor,
Money Heist Season 1, Episode 13
We must call the Professor and tell him.
Money Heist Season 1, Episode 4
Professor Proton said
I should call him Arthur.
The Big Bang Theory Season 6, Episode 22
this Professor Proton thing
pretty hard.
The Big Bang Theory Season 7, Episode 22