Heavy metal music
Critics disagree over who can be thought of as the first heavy metal band. Most credit either Led Zeppelin or Black Sabbath, with American commentators tending to favour Led Zeppelin and British commentators tending to favour Black Sabbath, though many give equal credit to both. A few commentators—mainly American—argue for other groups including Iron Butterfly, Steppenwolf or Blue Cheer. Deep Purple, the third band in what is sometimes considered the "unholy trinity" of heavy metal (Black Sabbath, Led Zeppelin, and Deep Purple), despite being slightly older than Black Sabbath and Led Zeppelin, fluctuated between many rock styles until late 1969 when they took a heavy metal direction.
Heavy: The Story of Metal
The series focuses on the origins, subgenres, and the bands of heavy metal music, paying close attention to influential bands like Black Sabbath, Led Zeppelin, Judas Priest, and Iron Maiden, who helped to define heavy metal in its early years. Other bands on the program include, Alice Cooper, Kiss, AC/DC, Van Halen, Europe, Def Leppard, Quiet Riot, Mötley Crüe, Megadeth, Metallica, Anthrax, Guns N' Roses, and Marilyn Manson. However, the documentary notably passes over lower profile metal subgenres such as death metal, black metal, doom metal, progressive metal, power metal and many others considered core elements of today's metal pantheon, focusing mostly on hard rock & traditional heavy metal. In Canada, the documentary aired on MuchMoreMusic and on C4 in New Zealand. It is not available on DVD or video.