I remember first reading about these. My reactions were something like: Ok, they had video projectors in the late sixties. Fine. Wait a minute. I hadn't even

I remember first reading about these. My reactions were something like: Ok, they had video projectors in the late sixties. Fine. Wait a minute. I hadn't even seen a video projector until the late eighties. They were non-existent at my university in the early nineties. I saw a small-lecture-hall one in 2000, and that was a large, hot and expensive-looking device. And these fellows had them thirty years earlier? reads up a bit Blimey!