He-Man and the Masters of the Universe is an American animated television series that aired from 1983 to 1985. The show was produced by Filmation and based on the toy line of the same name by Mattel.
The series follows the adventures of Prince Adam, who, when he raises his sword and utters the phrase "By the power of Grayskull, I have the power!", transforms into the muscular and powerful He-Man. He-Man, along with his allies, including Battle Cat and Man-At-Arms, protects the kingdom of Eternia from the evil forces of Skeletor and his minions.
The show was known for its action-packed adventures, moral lessons, and memorable characters, including Teela, Orko, Evil-Lyn, and Beast Man. He-Man's arch-nemesis, Skeletor, became a pop culture icon, known for his distinctive appearance and over-the-top villainy.