
Aha! So I am working with you?
The Big Bang Theory Season 3, Episode 4

Aha!
Game of Thrones Season 3, Episode 2

answer the door or should I
open it and say "AHA" again?
The Big Bang Theory Season 7, Episode 2

A-ha! You are upset.
The Big Bang Theory Season 10, Episode 20

No, I think it's stupid.
Aha!
The Big Bang Theory Season 7, Episode 16