Is it any wonder
he doesn't have a DOCTORATE?
The Big Bang Theory Season 4, Episode 18
get a DOCTORATE.
The Big Bang Theory Season 5, Episode 21
What's a world-renowned entomologist
with a DOCTORATE...
The Big Bang Theory Season 3, Episode 2
I have a DOCTORATE
from Indiana University.
The Big Bang Theory Season 12, Episode 5
I've been thinking about getting my DOCTORATE,
and he wants to teach. Why not?
The Big Bang Theory Season 8, Episode 2