He-Man

Original Air Dates: 1983 - 1985 (syndicated)

He-Man... And the Master of the Universe!

I am Adam, Prince of Eternia, Defender of the Secrets of Castle Greyskull. This is Kringer, my fearless friend.  Fabulous, secret powers were revealed to me the day I held aloft my magic sword and said: "By the Power of Greyskull!"

He-Man, He-Man . . . I have the power!

Kringer became the mighty BattleCat and I became He-Man, the most powerful man in the Universe!  Only three others share this secret . . .  Our friends the Sorceress, Man-at-Arms, and Orko. 
Together we defend Castle Greyskull from the evil forces of Skeletor. . . . He-Man!

    

Thanks to Ashley for help.