
I deduce that the Professor wants
Money Heist Season 3, Episode 6

Professor.
Money Heist Season 3, Episode 5

Professor.
Money Heist Season 3, Episode 5

- How'd you get him to come to your house?
- As Professor Proton always says:
The Big Bang Theory Season 6, Episode 22

in case at any point we lost
communication with the PROFESSOR."
Money Heist Season 1, Episode 6