Technology Connections has a decent five video series on the history of LaserDisc. It's some of his earlier work so the production quality isn't quite where his newer videos are today but it's still worth a watch.
https://www.youtube.com/playlist?list=PLv0jwu7G_DFUoByWSHHoS...
He also has a newer series on the far more obsucre CED (Capacitance Electronic Disc) from RCA that's really interesting.
https://www.youtube.com/playlist?list=PLv0jwu7G_DFVP0SGNlBiB...