War of the Coprophages featured insect-like robots designed by roboticist and author Rodney Brooks. Morgan was also inspired by Orson Welles's 1938 radio broadcast of H.G. Wells's book "The War of the Worlds" (which had caused mass hysteria), with the episode's title being a direct reference to the novel (with the last part of the episode's title, "coprophages", referring to a dung eater). The town featured in this episode also takes place in—Miller's Grove—is a play on Grover's Mill, the setting of Orson Welles's 1938 radio adaptation. Originally, a scene featuring the sheriff discussing a noted case of hysteria from the 1930s was planned
Around the World with Orson Welles with the first broadcast scheduled for September 1955. However, Welles's other commitments interfered with his ability to meet deadlines, and much of the series was left incomplete. Welles spent much of 1955 working on writing, directing and acting in his London stage production "Moby Dick—Rehearsed", and after that flopped on the West End, he switched to shooting an (aborted) film adaptation of the play, first in London, and then in Rome - filming "Moby Dick—Rehearsed" in Rome was under the pretext of working on the "Around the World with Orson Welles" TV series. Although Associated-Rediffusion retained a number of rights,