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
The Orson Welles Show (radio series) debut of "The Hitch-Hiker", an original radio play by Lucille Fletcher (wife of Bernard Herrmann) that has become a classic of suspense. On the broadcast of December 29, 1941, Rita Hayworth was the guest player; this was the first meeting between Welles and Hayworth, who were married in September 1943. Welles concluded the final broadcast of "The Orson Welles Show" February 2, 1942, with a statement: "Tomorrow night the Mercury Theatre starts for South America. The reason, put more or less officially, is that I've been asked by the Office of the Coordinator of Inter-American Affairs to do a motion