Isis(1975)

The Secrets of Isis is a live-action superhero series that debuted on CBS in 1975 as part of the Saturday morning lineup. Produced by Filmation, the show follows a female superhero—a landmark achievement for American television at the time. Isis premiered on September 6, 1975, making it the first weekly American live-action series to center on a female superhero, predating both The Bionic Woman and Wonder Woman. The series was syndicated across the United States and broadcast internationally. With its colorful action sequences and earnest tone, Isis brought comic-book heroics to young audiences during the golden age of Saturday morning television, establishing a template for superhero programming that would influence the medium for decades to come.