was googling,
"Where can I buy a THESIS?"
The Big Bang Theory Season 12, Episode 21
Your THESIS that the Higgs boson
is a black hole
The Big Bang Theory Season 5, Episode 21
Before that,
I spent four years working on my THESIS.
The Big Bang Theory Season 1, Episode 4
We took quite a detour
from what I understand to be your THESIS.
The Big Bang Theory Season 1, Episode 15
Kripke says
he plagiarized his THESIS,
The Big Bang Theory Season 12, Episode 21