Colonel,
a drone has located the Professor.
Money Heist Season 3, Episode 7
They cast the new
Professor Proton.
The Big Bang Theory Season 11, Episode 15
I don't know where the Professor is.
Money Heist Season 3, Episode 8
"Professor Jones told the
symposium he had a new method
The Big Bang Theory Season 5, Episode 16
But what the Professor didn’t tell us
Money Heist Season 1, Episode 1