I can't believe this has 8.9 on IMDb. I don't like this show (evidently from my rating); not because of the subject matter because I do find that mildly interesting just to see what people thought of over the ages...but that interest as you can gather can only last for about a minute after I've seen the invention. I don't like the show because of the way it's made; it just seems very unnecessary. They show you a replica of the invention, describe how it worked...and then SHOW you how it works. Why? You can imagine how it will work from the description and be shocked that it was used, I don't need to see it. Seeing it in action is just sadistic. I mean in one episode, they've strung up dummies on ropes and pulleys and cranking on levers to dislocate their joints...to see if the joints will dislocate...which they already know, and have told you, they will; if the damn thing was used for decades it obviously worked; why do you have to test it? Lastly the hosts are just dry and don't really bring anything to the show; mostly just stating the obvious and not to mention the narrator with his idiotic purposefully over-emphasised generic 'scary' voice.