For the original series episode "Second Chance", the exterior of the Braniff Space Rover attraction at Freedomland U.S.A. reportedly was used as a reference for the exterior of the flying saucer in this episode. In one scene, two actors are seen outside the flying saucer in a park with a carousel in the distance. While Freedomland's Space Rover may have served as a reference for the flying saucer in the program, the clip provides evidence that the episode was not filmed at Freedomland.