
...freeing my prefrontal cortex
to work quietly in the BACKGROUND.
The Big Bang Theory Season 3, Episode 14

They shot me in front of a starry
BACKGROUND where I posed like this:
The Big Bang Theory Season 2, Episode 4

What's your educational BACKGROUND?
The Big Bang Theory Season 6, Episode 2

I mean, they're highly-trained educators
with BACKGROUND checks.
The Big Bang Theory Season 10, Episode 21

We'd have
the same cultural BACKGROUND...
The Big Bang Theory Season 1, Episode 2