Very well written, great article. I was a huge laserdisc fan, when the original MCA Discovision videodiscs came out, you could actually own a movie in stereo sound at home, what a thrill that was for me. I remember fondly my first Discovision discs Xanadu and Flash Gordon, then The Blues Brothers. Having been an audio buff and movie fanatic all my life it was a huge thrill to watch these discs on my 46 inch rear projection TV (which had such low light you could not even see the picture from an angle) and listening to the soundtracks in dolby surround sound.
Yes I had an 8 track player, and quad Pioneer receiver, and some others in the list.
I think the saddest of the above is 3D. The way it was rolled out was one of the worst ventures of the studios and electronics companies ever. First, the studios started to release their very first titles as exclusives to Panasonic and Samsung, so with so few titles available (maybe 10), you were not guaranteed to be able to get half of the titles unless you paid a fortune on Ebay. The glasses were another problem. Asking working families to pay over $150 for a pair of active glasses, in a family of 4 or 5, was a big road block. And then of course 2 types of 3D (active and passive) confused the consumer even more! I truly believe that with 3 channels of 3D television on DirecTV (ESPN, one I can't recall and Direct's own channel) and continued blu-ray 3D releases, this format might have been a success, maybe not a huge success, but I think it would have sustained itself for much longer. The final straw came when the television manufacturers decided to expire 3D, many of the last models were made in 2016, but LG and Samsung had already quit, even with 3-6 3D releases a month on blu-ray including the Star Wars movies, leaving so many people without an option to buy a new TV to play their blu-ray 3D collections. I think the electronics manufacturers really screwed over alot of people with collections not offering ANY TV in their line that would play 3D. And of course there was Disney, who started releasing, with FROZEN, no 3D version in the USA.
So was 3D really a failure? I know of lots of people looking for a 3D television even now. Did the electronics companies cause it to fail? That's a more accurate bet in my opinion. Not everyone minded the easy task of putting on a pair of glasses.