
So it's BASED on your life.
The Big Bang Theory Season 1, Episode 1

but BASED on the currently
established parameters
The Big Bang Theory Season 5, Episode 10

...which predicts the stability of a couple
BASED on behavior.
The Big Bang Theory Season 8, Episode 3

and BASED on the sweatpants
he left at her place,
The Big Bang Theory Season 11, Episode 14

Hint: it's BASED
on Sanskrit,
The Big Bang Theory Season 12, Episode 2