“The Joker’s Last Laugh” / “The Joker’s Epitaph”
Written by Peter Rabe and Lorenzo Semple Jr.
Directed by Oscar Rudolph
Season 2, Episodes 47 and 48
Production code 9747
Original air dates: February 15 and 16, 1967
The Bat-signal: The Gotham City bank is providing counterfeit $100 bills for withdrawal, which results in law-abiding citizens passing fake money. The bills are perfect on one side, but blank on the other. Haunted by the insanity of the crime—and Joker’s laughter, which is echoing in Gordon’s office from an indeterminate source—Gordon and O’Hara call Batman, which interrupts Dick’s economics homework, to the boy’s delight and Bruce’s chagrin. (Bruce waxes rhapsodic about how awesome the subject of economics is, a diatribe that could only come from someone independently wealthy…)