And back to the ZONE.
The Big Bang Theory Season 7, Episode 6
You need to push your brain out of its
comfort ZONE and reach mental exhaustion.
The Big Bang Theory Season 10, Episode 22
- There's no space in the white ZONE, so...
LEONARD: Anyway...
The Big Bang Theory Season 6, Episode 24
The white ZONE
is for loading and unloading.
The Big Bang Theory Season 6, Episode 24
Stop saying "ZONE ZONE"!
The Big Bang Theory Season 12, Episode 14