Did you go to that spin CLASS
on Green Street?
The Big Bang Theory Season 7, Episode 20
Pedro, please, don’t behave like in CLASS.
Money Heist Season 1, Episode 1
I'll use that one to lighten the mood
after my entire CLASS fails the midterm.
The Big Bang Theory Season 8, Episode 2
You know the new Discovery CLASS missions
NASA's been working on?
The Big Bang Theory Season 8, Episode 21
Why do you think that?
I get it, you're taking one CLASS.
The Big Bang Theory Season 6, Episode 6