
Okay, Dr. Cooper
is on the verge of a BREAKTHROUGH.
The Big Bang Theory Season 2, Episode 6

Super-asymmetry could be the
BREAKTHROUGH that gets us there.
The Big Bang Theory Season 12, Episode 13

Uh, no doubt you heard about
my little BREAKTHROUGH.
The Big Bang Theory Season 7, Episode 6

If he sees the
incredible BREAKTHROUGH
The Big Bang Theory Season 5, Episode 21

- Dr. Cooper is working.
- Yes, I'm close to a BREAKTHROUGH.
The Big Bang Theory Season 2, Episode 6