
Challenge me, kraken.
Game of Thrones Season 4, Episode 2

Challenge accepted! Sounds like it's time
for the Sheldon Cooper Apology Tour!
The Big Bang Theory Season 9, Episode 13

Trivial even.
You want a real CHALLENGE? Try whores.
Game of Thrones Season 3, Episode 3

Maybe you need to CHALLENGE
your motor skills.
The Big Bang Theory Season 10, Episode 22

That's it. The Sheldon Cooper
Girlfriend Challenge is officially live.
The Big Bang Theory Season 9, Episode 8