I record live session D&D and post the games to Youtube, but only for our group's use for archiving and remembering things that happened. Also, I use too many copyrighted maps and tokens to feel comfortable streaming.
Here is a "trailer" I made for a (then) upcoming campaign arc. Although nearly everything in it is taken from gaming footage, the segments are so short, I doubt anyone would mind. I chose shots that would closely match the characters and action of the campaign. The music just comes with iMovie.
and here is the title card I use for each adventure, images from WotC's fansite kit, music from Garage Band.