Description by couchtuner for The Simpsons Season 3 Episode 13 : On his birthday, Bart receives a “Superstar Celebrity” microphone that transmits sound to an AM radio. Bart decides to use the device to play a prank on the town and places the radio deep inside a well, using the microphone to pose as Timmy O’Toole. But later, when Bart gets stuck in the well himself, the town decides to leave him there as punishment for playing the prank.
Watch It Here : The Simpsons Season 3 Episode 13 Radio Bart