This episode was scheduled on two different occasions.
On October 17, 1974, the episode was preempted for game 5 of the World Series between the Oakland Athletics and the Los Angeles Dodgers.
On the rescheduled air date of January 23, 1975, the episode was preempted for an NBC News Special. Tom Brokaw and John Chancellor interviewed President (and Movin' On fan) Gerald Ford, which was held and broadcast live from the White House.
The episode finally aired on NBC February 20, 1975.
Numerous websites list this episode under two separate titles: "Ransom" and "Ann's Party".
On the way to the ransom drop, Sonny and Will drive by the windjammer "Star of India" still located in San Diego as a living/sailing museum.