There was actually a Smalltalk shell for Unix - it was bundled with the Ardent Titan (cough) "mini-supercomputer". Best feeling keyboard I ever remember using but a very meh system otherwise. Old man shakes fist at clouds...
unfortunately due to the video quality it's very hard to see the details. I doubt the original analog quality was that bad, it either got crippled by digitalization or it had degraded before being digitalized.
