You may have noticed that YouTube videos and other social media have been transformational in our culture. Videos, in particular, now a routine part of supposedly serious nightly newscasts, have shifted the notions of storytelling and fame.

Those themes are explored in "Me @ The Zoo" (9 tonight, HBO), a  documentary, both disturbing and fascinating, that tells the story of Chris Crocker who came to this new kind of fame by his defense of Britney Spears.  (The name is inspired by the very first YouTube post.)

Crocker started posting videos on MySpace mostly as a release from a troubled existence. He lives with his evangelical paternal grandparents, which is tricky since Crocker identifies as a woman. That didn't go over well in small town Tennessee.