"I'll Blow You a Kiss in the Wind", which Serena claims to have written for Tommy Boyce and Bobby Hart was in fact a song of their own which achieved chart success.
Serena interrupts the movie that Sam and Darrin are watching on TV to bring them a "SIGALERT." This is a reference to a Los Angeles-based traffic system named for its creator, Loyd Sigmon, who developed a system in 1955 in partnership with the Los Angeles Police Department to broadcast traffic accident and traffic jam information over local radio. In the 60s through the 90s it was common to hear southern California broadcasters use the term "SigAlert" to denote freeway tie-ups of more than two hours. The term is seldom used anymore. Since it was not used in New England, where this series is based, it can be best thought of as a local joke for California viewers.
This is the first time the end credits lists the pseudonym "Pandora Spocks" as Serena, even though Elizabeth Montgomery plays both Samantha and Serena throughout the series.