You're very right, Carter. As someone who smoked for 25 years, I'm proof that you can indeed know about all the consequences without really internalizing the lessons. I might've quit sooner if I'd actually seen a darkened, withered lung first-hand rather than just pictures of them.
I can see how it would definitely be a more concrete motivator than just being told. It probably has a lot to do with presentation, too. There's a difference between, "I want to show you what this looks like and the effects it has on the human body" and "Wow, look at this poor fat corpse who was someone's mom or sister or daughter until she died because she's too stupid to know when to put down the fork! Poke around in it, be disgusted by it, hate it!"
I'd probably really need to see the show before judging it. Generally I would keep my mouth shut (well...okay, no, I probably wouldn't

), but I'm kind of sensitive about televised excesses especially when they involve someone's poor dead maw-maw. Seeing it through others' eyes, I can definitely see where it would do some good.
I just hope the tone was respectful and not, "You're gonna dieeeee, stupid! Put down the fork!"