Voyage to the Bottom of the Sea (TV series) color episodes. The ship's enlisted men were also given more colorful uniforms (red or light blue jumpsuits) and white Keds Champion sneakers, evidently to take advantage of the changeover from black-and-white filming. The traditional sailor uniforms worn in the first season were only seen in stock footage from the first season and on characters who were newly filmed to match up with that footage. All these changes occurred between seasons. A second-season episode, "The Sky's On Fire", was a remake of the basic storyline of Irwin Allen's 1961 film "Voyage to the Bottom of the Sea" utilizing considerable film color
Lost in Space job for its "Lost in Space" appearance, while space monster costumes would be reused on "Voyage" as sea monsters. The clear round plastic pen holder used as a control surface in the episode "The Derelict" turned up regularly throughout the show's entire run both as primary controls to activate alien machinery (or open doors or cages), and as background set dressing; some primary controls were seen used in episodes such as Season 1's "The Keeper (Parts 1 and 2)", "His Majesty Smith", and Season 3's "A Day At The Zoo", and "The Promised Planet". Spacecraft models, were also routinely re-used.