First appearance of Remo & Jean Da Vinci.
House in San Clemente is a direct reference to President Nixon's home where he retired after resigning the presidency.
Kings-X is a call used in children's games asking for exemption or mercy: similar to "uncle" or "not it".
First episode onward, when Mork's "O" is shaped like an egg along with the font of the title.
Mr. Bickley's comment on Mork and Mindy's first fight, "Sounds like a reasonable first fight to me. Has a good beat, easy to yell to: I give it a seven," is a reference to common audience appraisals of songs on American Bandstand.