Mork & Mindy is an American sitcom television series that ran from September 14, 1978, to May 27, 1982. The show was a spin-off of a highly successful episode of Happy Days that starred Robin Williams as Mork, an extraterrestrial who comes to Earth from the planet Ork in a small, one-Orkan egg-shaped spaceship and Pam Dawber as Mindy McConnell, his human friend and roommate, and later his wife and the mother of his child. Nanu nanu (pronounced NAH-noo NAH-noo), also variously spelled Na-nu Na-nu, Na-No Na-No, and Nanoo Nanoo, is the typical Orkan greeting. Its usage is similar to the Hawaiian word “aloha,” which may be used as both a greeting and a farewell since Mork also uses the phrase in his weekly mental reports to Orson.