The reality show “Pitchmen” gave us a behind-the-scenes look at infomercials produced by and starring the delightful duo of Anthony Sullivan and the late Billy Mays. (Oddly, the program made me less wary of infomercial products. But I’m still not about to actually order any.) But wait—there’s more! Check out this video to see what goes on behind the scenes at another direct-sales powerhose, TriStar Products.