The mark of a good magic show is wondering to yourself how on earth these tricks were done.
My uncle used to do magic tricks for my sister and I when I was younger. I remember truly believing it was magic when I was a kid. And then as I grew up, I started learning how some of them were done. I would watch really closely and try to figure out how to recreate them. I'm not claiming to be an expert by any means and I'm certainly no magician myself.
But I will say this about McSorley and Chung: I have no idea how they performed most of the tricks in their show.