The professors begin their series exploring the many subgenres of heavy metal. Up first: New Wave of British Heavy Metal (NWOBHM). Bryan and Chris discuss the formation of the subgenre, the popular and obscure bands who make up NWOBHM, and the reasons why it dropped off in popularity. They also look at its contemporaries and consider how it influenced thrash and glam metal.

This time around, Bryan and Chris have both been listening to Iron Maiden. Chris discusses the rare version of "The Wicker Man," and Bryan ranks his top (and bottom) Maiden albums.

Find Chris on Twitter: @valvoch

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