Synopsis:
Planet Express makes a delivery to the writers of "The Scary Door" TV show where Fry, Leela, and Bender learn the truth about where the staff get their story ideas. The discovery of an Inter-Dimensional Viewing Machine leads to the trio getting trapped in other dimensions from which they have to escape.
Notes:
"The Scary Door" (as seen in several of the Futurama tv episodes) is a takeoff of the Rod Serling classic "The Twilight Zone".