
Is it any wonder
he doesn't have a DOCTORATE?
The Big Bang Theory Season 4, Episode 18

I went to school for half my life.
I have a DOCTORATE.
The Big Bang Theory Season 8, Episode 20

You've heard him tease me
about not having a DOCTORATE.
The Big Bang Theory Season 5, Episode 21

get a DOCTORATE.
The Big Bang Theory Season 5, Episode 21

I have a DOCTORATE
from Indiana University.
The Big Bang Theory Season 12, Episode 5