He-Man and the Masters of the Universe a "life lesson" or "moral of the story" at the end of each episode. This moral was usually directly tied to the action or central theme of that episode. The show was so successful that it spawned a spin-off series, "", following the adventures of He-Man's sister, Princess Adora. Mattel's subsequent attempts to relaunch the He-Man toy line also led to the short-lived sequel series "The New Adventures of He-Man" in the early 1990s, and an update of the series for a contemporary audience in 2002. It is also noted for featuring early script-writing work from J. Michael Straczynski, later
Evil twin usages were in fact in westerns. Two episodes entitled "Deadly Image" appeared within a year of each other on two different westerns. "Maverick's" version appeared in March 1961, followed swiftly by "The Rifleman's" take in February 1962. Beyond the coincidence of name, both offered similar plots: the hero becomes confused with a look-alike criminal, and the guilt of the hero must be cleared by demonstrating that the evil twin is a separate individual. "Pretty Little Liars" could be used as an example, where one of the main protagonists Spencer Hastings was discovered to have an evil identical twin sister named