He-Man ("The Most Powerful Man in the Universe") is a heroic fictional character in the toy series Masters of the Universe ("MOTU") and the various spin-off products and media related to it. The most prominent is the animated series He-Man and the Masters of the Universe, produced by Filmation Studios. The syndicated series premiered in 1983 and ran until 1985, for a run of 130 episodes. In the series, He-Man and his friends defend Eternia and the secrets of Castle Grayskull from the evil forces of Skeletor. This was followed in 1990 by The New Adventures of He-Man which has He-Man summoned to the future world of Primus. In 2002, a remake was shown on Cartoon Network. The character's name is presumably based on an old expression in which a "he man" is any macho male, an expression often used in an ironic way.