
Now, when I get to this EQUATION here,
really let me have it.
The Big Bang Theory Season 10, Episode 19

Oh. Really?
Are you familiar with the Drake EQUATION?
The Big Bang Theory Season 2, Episode 20

Solve the EQUATION.
The Big Bang Theory Season 1, Episode 13

in the same EQUATION.
The Big Bang Theory Season 10, Episode 15

out of the EQUATION.
Westworld Season 3, Episode 8