<P> Mork & Mindy, is set in Boulder, Colorado, in the then present - day late 1970s and early 1980s (as opposed to the Happy Days setting of Milwaukee in the late - 1950s). Mork explains to Richie that he is from the "future"--the 1970s . </P> <P> Mork arrives on Earth in an egg - shaped spacecraft . He has been assigned to observe human behavior by Orson, his mostly unseen and long - suffering superior (voiced by Ralph James). Orson has sent Mork to get him off Ork, where humor is not permitted . Attempting to fit in, Mork dresses in an Earth suit, but wears it backward . Landing in Boulder, Colorado, he encounters 21 - year - old Mindy (Pam Dawber), who is upset after an argument with her boyfriend, and offers assistance . Because of his odd garb, she mistakes him for a priest and is taken in by his willingness to listen (in fact, simply observing her behavior). When Mindy notices his backward suit and unconventional behavior, she asks who he really is, and he innocently tells her the truth . She promises to keep his identity a secret and allows him to move into her attic . Mindy's father Fred (Conrad Janis) objects to his daughter living with a man (particularly one as bizarre as Mork), but Fred's mother - in - law Cora (Elizabeth Kerr) approves of Mork and the living arrangement . Mindy and Cora work at Fred's music store, where Cora gives violin lessons to Eugene (Jeffrey Jacquet), a 10 - year - old boy who becomes Mork's friend . Also seen occasionally are Mindy's snooty old high school friend Susan (Morgan Fairchild) and the possibly insane Exidor (Robert Donner). </P> <P> Storylines usually center on Mork's attempts to understand human behavior and American culture as Mindy helps him to adjust to life on Earth . It usually ends up frustrating Mindy, as Mork can only do things according to Orkan customs . For example, lying to someone or not informing them it will rain, is considered a practical joke (called "splinking") on Ork . At the end of each episode, Mork reports back to Orson on what he has learned about Earth . These end - of - show summaries allow Mork to humorously comment on social norms . </P> <P> Mork's greeting is "Na - Nu Na - Nu" (pronounced / ˈnɑːnuː ˈnɑːnuː /) along with a hand gesture similar to Mr. Spock's Vulcan salute from Star Trek combined with a handshake . It became a popular catchphrase at the time, as did "Shazbot" (/ ˈʃæzbɒt /), an Orkan profanity that Mork uses . Mork says "KO" in place of "OK". </P>

Who did mork talk to at the end of the show