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