SHELDON: Go ahead.
That's the only DOCTORATE you'll ever get.
The Big Bang Theory Season 6, Episode 9
Bernadette got her DOCTORATE.
The Big Bang Theory Season 10, Episode 11
Your DOCTORATE is in neurobiology.
I fail to see the distinction.
The Big Bang Theory Season 4, Episode 24
get a DOCTORATE.
The Big Bang Theory Season 5, Episode 21
Is it any wonder
he doesn't have a DOCTORATE?
The Big Bang Theory Season 4, Episode 18