S2·E47 The Joker's Last Laugh

Counterfeit money is being distributed by respectable citizens in Gotham City. Batman and Robin investigate, and find one of the Joker's lifelike robots substituting for a bank teller. They are certain who is behind the crime. But to get actual proof, Batman plans to visit the villain as Bruce Wayne and trick him into disclosing his operation. When his scheme suddenly backfires, it appears he will instead have to appoint the Joker as Vice Chairman of the Gotham National Bank.