This episode was filmed, in part, at Marineland of the Pacific, a popular oceanarium/theme park in Southern California. Marineland operated from 1954 to 1987, when it was bought and closed down by rival SeaWorld. But this episode of "The Partridge Family" wasn't the only sitcom to have filmed at Marineland. Back in 1965, Lucille Ball shot an episode of "The Lucy Show" there called "Lucy at Marineland". And "The Beverly Hillbillies" shot two different episodes at the same ocean park in 1964: "The Clampetts It's Go Fishing" and "Back to Marineland".
The killer whale footage was filmed at Marineland of the Pacific.
This is Shirley Jones's favorite episode of the series.