SelectaVision
Once upon a time, before laser-read discs, there was SelectaVision: movie discs that were interpreted by a mechanical stylus, just like vinyl records.Read about the technology here.
And there are plenty of players and discs for sale cheap on eBay, if you want to go retro!
The first four minutes of the video below show lots of period films offered in the medium. Starting at the four-minute mark, you see the player and how it works.
Category: Movies, Television, Technology, Yesterday's Tomorrows