Show: Batman: The Animated Series
Air Date: September 11th, 1992
Episode Title: Joker’s Favor
Appearance: First appearance, ever.
On September 11th, 1992, Bat Fans tuned in for the B:TAS episode “Joker’s Favor”, ready to see the Caped Crusader battle it out yet again with the Clown Prince of Crime. Little did anyone realize, they were also meeting one of the most popular characters of recent years for the very first time.