(Bart sees a framed drawing of Itchy)

Bart: Cool! I'll give you ten bucks for that.

CBG: Are you the creator of Hi and Lois because you are making me laugh.
That drawing is worth exactly 750 dollars American.

Bart: It's valuable, huh?!

CBG: Ooh, your powers of deduction are exceptional. I can't allow you
to waste them here when there are so many crimes going unsolved at
this very moment. Go, go, for the good of the city!

Bart: Loser.

The Day The Violence Died (Episode 3F16)