Answer
Jacques Cousteau's second documentary series was The Cousteau Odyssey, which aired from 1977 to 1979. The series was a sequel to his first documentary series, The Undersea World of Jacques Cousteau, which aired from 1966 to 1976. The Cousteau Odyssey followed Cousteau and his crew as they explored the world's oceans, discovering new species and learning more about the underwater world.