Trivia: Johanna is played by Cheryl Stoppelmoor - who is today known as Cheryl Ladd.
Trivia: The scene of the spooky castle on the rocky shore was used in episodes of "Gilligan's Island" featuring Vito Scotti as mad scientist Boris Balinkoff.
Lady, You Don't Look Eighty - S1-E13
Trivia: Caroline Ellis (Joy) references her actual birthday of October 12 when she complains the boys forgot it.
Trivia: Mary Tyler Moore was very concerned about the fashion appearing on the show, if the hemline changed in Paris then a scene would be shot over again with the hemline of the dress/skirt changed accordingly.
Kitten Kong - S2-E7
Trivia: On many recent specials and Live-shows, Tim has mentioned that in the scene where the Cat is dragging him face-down along the ground in the park a dog came out of nowhere and laid some do-do in his path. Since Tim didn't want to ruin the scene, he decided to continuously move himself right over it. Clearly it's something he hasn't forgotten.