You mean doing a dramatic reading of it, like Masterpiece Fanfic Theater? That would be cool, although you might want to give massive disclaimers for Hogwarts Exposed.

I think if you want to be a contributer, you just start making videos and send 'em to Rob Walker. He actually did a post in the forums with tips. From what I heard the best thing is just to have fun and get started.

Best of luck with that, though! Let me know if you get anything down. ^_^