![Yeah, Department of Energy said
our regular space is kind of a hot zone.
Yeah, Department of Energy said
our regular space is kind of a hot zone.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Yeah, Department of Energy said
our regular space is kind of a hot ZONE.
The Big Bang Theory Season 1, Episode 5
![Not really. I was in my boogie zone.
Not really. I was in my boogie zone.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Not really. I was in my boogie ZONE.
The Big Bang Theory Season 3, Episode 14
![Stop saying Stop saying](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Stop saying "ZONE ZONE"!
The Big Bang Theory Season 12, Episode 14
![Look, I know this experiment is
a big step outside of your comfort zone.
Look, I know this experiment is
a big step outside of your comfort zone.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Look, I know this experiment is
a big step outside of your comfort ZONE.
The Big Bang Theory Season 10, Episode 4
![No, no, no, no.
The zone zone is a safe zone.
No, no, no, no.
The zone zone is a safe zone.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
No, no, no, no.
The ZONE ZONE is a safe ZONE.
The Big Bang Theory Season 12, Episode 14