Careful, Leonard. Liquid nitrogen,
320 degrees below ZERO.
The Big Bang Theory Season 1, Episode 5
Come on, Howard, the odds of us picking
up girls in a bar are practically ZERO.
The Big Bang Theory Season 2, Episode 20
I don't know. In space you couldn't even
toss me a pen, and that was in ZERO gravity.
The Big Bang Theory Season 8, Episode 3
You see this double ZERO? When it says
"01", that means it's twinkling.
The Big Bang Theory Season 10, Episode 8
...that spot at the moment I first sat on it
would be ZERO, ZERO, ZERO, ZERO.
The Big Bang Theory Season 2, Episode 16