Plot: Prince Planet is the English-language title given to one of the earliest Japanese anime TV series, Planet Boy Papi, when it was transmitted on American television in the United States in the mid-1960s. A 52-episode monochrome anime series, it tells the story of a member of the Universal Peace Corps, originally from the planet Radion, coming to Earth on a mission to determine if this world meets standards for membership in the Galactic Union of Worlds and assist its inhabitants during his stay