He-Man in black magic and all forms of combat. He was also shown to be extremely cunning and intelligent. Though his origin was mysterious, and the cartoon described him only as a "demon from another dimension", a tie-in comic implied that Skeletor's true identity was Prince Keldor (the older brother of King Randor), thus making him He-Man's uncle. It was revealed in the animated motion picture "He-Man and She-Ra: The Secret of the Sword" that Skeletor was Hordak's right-hand man until his capture (Hordak referred to Skeletor as "my old pupil" and Skeletor's throne-room in Snake Mountain as "my old throne-room"
He-Man and the Masters of the Universe the Universe", debuted through barter syndication in September 1983, and became the first syndicated show to be based on a toy. By 1984, it was seen on 120 U.S. stations and in more than 30 countries. Despite the limited animation techniques that were used to produce the series, "He-Man" was notable for breaking the boundaries of censorship that had severely restricted the narrative scope of children's TV programming in the 1970s. For the first time in years, a cartoon series could feature a muscular superhero who was actually allowed to hit people (although he more typically used wrestling-style moves rather