If you've ever stayed up so late on Saturday night that it turned into Sunday morning, you may have seen this week's subject at work. Robert Tilton, king of the 'prosperity gospel', was one of the most shameless, shameful preachers to ever work a crowd. 

This week, we dive into his inspirations, his history, and what he's up to today. 

While there's no question that Dr. Oz promotes some wacky products on his show, he's certainly not the first person to turn the public's trust into a cash machine. 

This week, we'll talk about a literal snake oil salesman -- the shifty-eyed, razzle-dazzle pitchman behind Stanley Clark's Snake Oil Liniment, and Senator Dudley Leblanc -- mastermind of Hadacol, and, of course, the magical Dr. Oz himself.