Description: Metal Evolution is a 2011 documentary series directed by anthropologist and film-maker Sam Dunn and director, producer and music supervisor Scot McFadyen about heavy metal subgenres, with new episodes airing every Friday at 10pm EST on MuchMore and Saturday at 10pm EST on VH1 Classic. Its origins come from Dunn's first documentary Metal: A Headbanger's Journey, which included the acclaimed "Heavy Metal Family Tree."