Okay, I know you've all seen this by now, but this is all in 1280x720 HD if you're interested. The cam is a bit shaky here and there thanks to the audience standing up and generally going crazy, so the parts with Paul and Ringo may be better served elsewhere. But overall this is some awesome footage.
The Beatles - Rock Band Microsoft Media Briefing footage in streaming HD
Enjoy -- I hope you like it! Back to work for me.