
That's CLASSIFIED.
The Big Bang Theory Season 2, Episode 22

What's CLASSIFIED?
The Big Bang Theory Season 2, Episode 22

Yes, I understand. Classified.
We'll keep it all CLASSIFIED.
The Big Bang Theory Season 2, Episode 22

It's a secure lab
in a CLASSIFIED facility,
The Big Bang Theory Season 10, Episode 23

It's CLASSIFIED.
The Big Bang Theory Season 11, Episode 8