 The show was a parody of _"Charlies Angels" (1976)_ (qv). The Teen  Angels, Brenda, Taffy and Dee Dee were clearly inspired by Josie,  Melody and Valerie from an earlier Hanna Barbera series,  _"Josie and the Pussycats" (1970)_ (qv). The character design of  Captain Caveman himself had already been used for the Slag Brothers  in yet another Hanna Barbera cartoon, _"Wacky Races" (1968)_ (qv).