The radio station call letters "WOTW" are an homage to "War of the Worlds", a novel by H.G. Wells and, more aptly, its radio play adaptation by Orson Welles.
The town's name Cayuga is borrowed from Cayuga Productions, Rod Serling's production company that produced The Twilight Zone (1959). There is no such town as Cayuga, New Mexico.
Filmed in 17 days in September 2016.
While Everett is walking Fay to her job at the telephone exchange, Fay begins recounting interesting articles she's read recently, all of which come from various editions of the magazine Mechanix Illustrated. The articles referenced, in order, are: "Electronic Highway of the Future" from January 1958, "A-Powered Trains in Glass Tubes" from December 1956, and "Your Telephone of Tomorrow" from September 1956.
The shot of Fay at the switchboard is held for nine minutes and forty seconds and was cut down from an original 11-minute take.