
Hint: He and Darth Vader
are tied for number two.
The Big Bang Theory Season 3, Episode 15

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

I'll give you a HINT,
The Big Bang Theory Season 10, Episode 5

Well, I'll give you a HINT, Walt.
Breaking Bad Season 5, Episode 13

With a HINT of ammonia.
The Big Bang Theory Season 5, Episode 7