"Harlequinade" Talkback (Spoilers) Harlequinade airs tonight at 7:30 eastern on Cartoon Network. Episode #072 - Harlequinade Original Airdate - May 23rd, 1994. - Second Season Finale Batman and Robin form an uneasy alliance with Harley Quinn in order to learn where the Joker has hidden a stolen atomic bomb. Harley leads them on a madcap hunt through Gotham, and eventually into a deadly show-down with the Clown Prince of Crime himself. Harley is torn between her promise to help Batman and her twisted love for the Joker. Comments?