You might think that men’s anxiety over baldness is a relatively recent development in the history of civilization. But it’s not. The ancient Romans invented the comb-over and paint-on hair, which has since become spray-on hair. In this hour of To the Best of Our Knowledge we’ll uncover mankind’s historic quest to end baldness. Also, we’ll visit one of the few places where men can get together to talk and hang out – the barber shop.