SHELDON:
It was obviously EFFECTIVE.
The Big Bang Theory Season 1, Episode 16
Ricin.
It's an extremely EFFECTIVE poison.
Breaking Bad Season 2, Episode 1
one of the most EFFECTIVE
techniques for moving on
The Big Bang Theory Season 7, Episode 20
that saying "pew, pew, pew"
isn't as EFFECTIVE
The Big Bang Theory Season 5, Episode 19
That's equally EFFECTIVE
The Big Bang Theory Season 10, Episode 21