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
Voyage to the Bottom of the Sea (TV series) footage, though several film sequences were removed and had been featured in other first-season episodes such as 'The Village of Guilt' (the giant octopus) and 'Submarine Sunk Here' (the derelict minefield). A few later season two episodes were filmed without Richard Basehart, who was hospitalized for a bleeding ulcer. He filmed the scenes in the Flying Sub for "The Monster's Web" before hospitalization, requiring a stand in and other characters taking over his lines. He was missing entirely from the next two episodes. These episodes didn't feature his character at all, while in one story "The Menfish" Gary Merrill guested