BBC takes on the history of sci-fi

Episode 2 will tackle space, in all its forms. Topics include the challenges of getting off planet, world-building, travelling vast distances, and the appeal of a gritty future. Shows covered include Star Wars, Star Trek, Avatar, Left Hand of Darkness, 2001: A Space Odessy, Dune, The Mars Triology, Dark Star, Firefly, and Alien.