From RCA SelectorVision CED (Capacitance Electronic Disc)
http://en.wikipedia.org/wiki/Capacit...lectronic_Disc
http://www.cedmagic.com/selectavision.html
http://www.cedmagic.com/home/cedfaq.html
To ultimately PioneerLaserdisc
http://en.wikipedia.org/wiki/DiscoVision
http://en.wikipedia.org/wiki/Laserdisc
http://www.lddb.com/
http://www.laserdiscarchive.co.uk/pioneer1.htm
MUSE HI-Vision
http://www.laserdiscarchive.co.uk/la...igh_def_ld.htm