To whom on planet Ork did Mork make a call each week?
"Mork & Mindy" starred Robin Williams as Mork, a bizarre, zany extraterrestrial from the planet Ork who comes to Earth in a small, one-seater egg-shaped spaceship. Mindy McConnell, played by Pam Dawber, befriends him and takes him in as a roommate. Mork's official mission on Earth is to observe human behavior and report back to his superior Orson on Ork. The series was the first major acting role for Robin Williams. Source: TV.com