“‘Audiovisual works’ are works that consist of a series of related images which are intrinsically intended to be shown by the use of machines or devices such as projectors, viewers, or electronic equipment, together with accompanying sounds, if any, regardless of the nature of the material objects, such as films or tapes, in which the works are embodied.” 17 U.S.C. § 101. In other words, the term “audiovisual works” refers broadly to any work that includes any series of related visual images, whether or not moving, and with or without sounds, as long as a machine or device is essential to the viewing of the related series of images.