Zenith Selectavision Player, Playing Star Trek the Motion Picture

We watched "Star Trek the Motion Picture" on a RCA Selectavision CED
Disc, and played it on a Zenith Selectavision Player ... RCA
SelectaVision ... The Capacitance Electronic Disc (CED) is an analog
video disc playback system developed by RCA, in which video and audio
could be played back on a TV set using a special needle and high-density
groove system similar to phonograph records. First conceived in 1964,
the CED system was widely seen as a technological success which was able
to increase the density of a long-playing record by two orders of
magnitude. Despite this achievement, the CED system fell victim to poor
planning, conflicts within RCA, and technical difficulties that stalled
production of the system for 17 years until 1981, by which time it was
outmoded by the DiscoVision (LaserDisc) and emerging Betamax and VHS
videocassette formats. Sales for the system were nowhere near projected
estimates, and by 1986, RCA had discontinued the project, losing an
estimated $600 million in the process. RCA had initially intended to
release the SKT425 CED player with their high end Dimensia system in
1984, but cancelled the CED player as part of the system just prior to
the release of the Dimensia system. RCA Selectavision.