Very cool, but I'll be honest...seeing those old 78's drop like that gives me the willies.
I know what you mean, with those type of automatic record changers, I've always wiggled the record and placed it on the platter. But that's the way they were designed to work. 78 records were not vinyl like later records, the were bittle and could smash like glass if you threw them against the wall.
For those who have never seen it, you could stack more than one record, when the first finished, the next one would fall on the one on the platter.