This disc, which could be considered the first demonstration disc for the MCA DiscoVision system by some, was not used
to any extent beyond the 1977 single sided test pressings. It is listed here only because copies from as late as 1979
have appeared in collector's hands. Much like the more well known Consumer Demonstration Disc, the
disc includes only samples of programming material. The disc begins with the original opening bumpers for MCA Disco-Vision. Next comes a fairly
in depth 10 minute film on the Polaroid SX-70 camera, complete with operating instructions and theory of operation. This is
followed by a short World Wide of Sports montage from ABC-TV accompanied with a jazzed up version of the Peter Gunn
theme. The next program is a pair of hands tying knots and displaying Three Card Monty. The "hands" section is recorded
in English and Spanish - This is essentially the same component that is on the US Demo Disc, but the
card trick is this time is "Follow the Ace" rather than "Follow the Queen". Finally, we have the National Geographic program,
Man: The Incredible Machine. However, only the first 16½ minutes of the program are present, with the program
simply cutting off during an explanation of the esophagus. None of the material on the disc was ever issued in any
other form with the exception of the National Geographic program. A significantly altered version of the program was issued through Vestron Video (Catalog #: VL1040) as "The Incredible Human Machine".
