On this day in 1955, the ‘Mickey Mouse Club’ debuted on ABC. The program aired each weekday afternoon for one hour. A cast of 24 kids starred as Mouseketeers, a group that soon became famous. They performed skits and musical numbers based on the day’s theme. Guest stars, Disney cartoons, and special segments made up the broadcast. The ‘Mickey Mouse Club’ became one of the most popular children’s shows of all time, prompting revivals in the 1970s and 1990s. [70 years ago in 2025]