must I CHALLENGE the law?
Vikings Season 1, Episode 1
Really give ourselves a CHALLENGE.
The Big Bang Theory Season 8, Episode 3
...as they CHALLENGE
the preconceptions of the fields.
The Big Bang Theory Season 2, Episode 4
All right, we've defeated the first CHALLENGE.
The Big Bang Theory Season 8, Episode 19
Challenge accepted! Sounds like it's time
for the Sheldon Cooper Apology Tour!
The Big Bang Theory Season 9, Episode 13