
Wow! So that means you're a DOCTOR,
you're a DOCTOR...
The Big Bang Theory Season 4, Episode 24

But then again,
I don't know much about Doctor Who.
The Big Bang Theory Season 8, Episode 19

Going to the grocery store,
driving you to the DOCTOR.
The Big Bang Theory Season 10, Episode 10

Can I tell my DOCTOR?
I'm probably gonna need shots!
The Big Bang Theory Season 5, Episode 2

Doctor said I should be out of surgery by 10.
The Big Bang Theory Season 8, Episode 9