I still think trying to shoehorn punk into this is stupid. The amount of punk that influenced metal is really small; really they had parallel but separate histories. I think you guys have kind of narrow view of it because of the kinds of metal you listen to. There's soooo much punk that has absolutely nothing to do with metal.
I find it kind of shocking that they wouldn't bother to do separate black and death metal episodes. Though the black metal one would only be interesting if they dug really deep and went into the many sub-sub genres. Like JRA said, no one wants to hear about the church burning shit again.
"COLONEL KLINK, WHY HAVE YOU FORSAKEN ME?!"