The Patty Duke Show aired on ABC beginning September 18, 1963. It featured the misadventures of a pair of identical cousins, Patty Lane - a normal American teenager living in Brooklyn Heights, New York - and Cathy Lane - her Scottish cousin freshly arrived in the United States to finish her secondary schooling. Patty Duke, popular because of her recent Academy Award for playing Helen Keller in the Miracle Worker (at the time she was the youngest person to have won an Oscar, for Best Supporting Actress), was chosen for her own self-titled vehicle, which featured her in not one, but two prominent roles. The show lasted three seasons and was popular with both parents and teenagers. (It didn't hurt that the show featured a handful of then-popular guest stars like Frankie Avalon and Bobby Vinton.) Duke's soft beauty, and the show's more-than-wholesome quality made her an early teenaged pop idol