
I was dressed as a CAT,
you were a hobbit.
The Big Bang Theory Season 12, Episode 6

Although, back in Nebraska,
our CAT got stuck
The Big Bang Theory Season 5, Episode 5

Cat, I've...
Game of Thrones Season 2, Episode 4

...the civet CAT is not a true CAT.
The Big Bang Theory Season 2, Episode 16

We might consider Schrödinger's CAT.
The Big Bang Theory Season 1, Episode 17