
He recommended that I go see
the third Matrix movie...
The Big Bang Theory Season 4, Episode 7

You know how I know
we're not in the Matrix?
The Big Bang Theory Season 2, Episode 2

...he said that Johnny Depp
was in The Matrix.
The Big Bang Theory Season 6, Episode 6

I'm in the MATRIX, Leonard;
I see everything.
The Big Bang Theory Season 5, Episode 10