Mork & Mindy (1978)

S3E13 There's a New Mork in Town

Mork is in a frenzy upon learning that Xerko is traveling from Ork to see him. When Xerko arrives, he proves to be conceited and self-absorbed, expressing his desire to take Mork's position of reporting to Orson. To settle the matter, Mork and Xerko engage in a duel to determine who will earn the coveted role.