The Secrets of Isis

The Secrets of Isis, originally broadcast as Isis, is an American live-action superhero television series produced by Filmation from 1975 to 1977 for CBS's Saturday morning lineup.[1] The series was renamed The Secrets of Isis in syndication.[2]

The program was the first weekly American live-action television series with a female superhero lead character, debuting on September 6, 1975, predating the weekly debuts of both The Bionic Woman (January 14, 1976) and Wonder Woman (April 21, 1976).[3] In the series, Isis (Joanna Cameron) is the alter ego of Andrea Thomas, a seemingly normal schoolteacher, who transforms into the Egyptian goddess when presented with crises a mere mortal cannot resolve.

Episodes of the series featured crossovers featuring Captain Marvel from the companion series, Shazam!. Likewise, Joanna Cameron appeared as Isis on Shazam! in return; since then DC Comics has adopted the character of Isis into their mainstream continuity for modern comics.