I finished watching the current No. 1 guild in the world <Paragon> tackle a unique live raid event developed just for BlizzCon 2010! It was a big thrill watching them do their stuff. I only wish I could've heard their communications in real time. I've always wondered what is being discussed on unknown encounters.
Except these weren't unknown encounters. We were fighting past foes like Shazzrah, Baron Geddon and the Beast. It wasn't limited to older encounters. Some newer bosses included Ozumat and Rom'ogg Bonecrusher. Apologies for the image quality on some of these folks; I'll need to select a better location and grab a better camera.