
and picture yourself
in a peaceful ENVIRONMENT.
The Big Bang Theory Season 7, Episode 13

...Typhoid Penny
has introduced into our ENVIRONMENT.
The Big Bang Theory Season 1, Episode 11

You know, if this experiment is going to
be valid, I suggest a neutral ENVIRONMENT.
The Big Bang Theory Season 10, Episode 4

...in a reward-based ENVIRONMENT?
The Big Bang Theory Season 8, Episode 23

trying to change
my ENVIRONMENT,
The Big Bang Theory Season 7, Episode 16