Any premises in which motion pictures, films, digital video images, video cassettes, slides, or similar photographic reproductions are shown as the principal use of the premises or are shown as an adjunct to some other business activity which is conducted on the premises and constitutes a significant portion of business, and wherein such films are shown an average of 20 percent or more of the establishment's regular business hours, and not to include school or public auditoriums used generally for noncommercial purposes on an infrequent basis, or

A room which contains one or more "motion picture booths," which shall be defined as an activity to which the public is permitted or invited wherein coin-operated or slug-operated or electronically, electrically or mechanically controlled still or motion picture machines, computers, projectors or other image producing devices are maintained to show images to five or fewer persons per machine at one time. Such a room containing the described booths may be commonly described as a "peep show establishment."