At the beginning Mrs. Graham asks the trainer to feed her horse and says that he'll give her horse a bale of hay "so tasty that it will make Euell Gibbons drool." At that time Gibbons was a media celebrity due to a TV commercial for Grape Nuts that begins with him saying, "Ever eat a pine tree? Many parts are edible."
This episode has a similar plot to Barnaby Jones: Final Ransom (1976).
This is the second time where Diana Hyland's character is horseback riding. The first being Spur of the Moment (1964).
Both Dabney Coleman and Howard Hesseman would later have recurring roles on Mary Hartman, Mary Hartman (1976).