and sign up
for a new acting CLASS and...
The Big Bang Theory Season 7, Episode 13
...his friend agreed to take a CLASS
with him and then doesn't...
The Big Bang Theory Season 3, Episode 7
You know the new Discovery CLASS missions
NASA's been working on?
The Big Bang Theory Season 8, Episode 21
in business CLASS--
don't abuse it.
The Big Bang Theory Season 12, Episode 23
It's like the rest of the CLASS
wanted Ms. McDonald to forget the quiz.
The Big Bang Theory Season 8, Episode 2