I'm not sure what happened to the mixing when MTV aired the performance, but I was actually there and it sounded much better in person (to me at least). I was at the corner of the center stage, right behind Mike and in front of Joe's stage. I couldn't see Phoenix at all and my view of Chester was kind of obscured by the center stage's wall, but I did have a great view of Joe, Brad, Rob, and um, Mike's back. The nice thing was that whenever Mike/Chester needed something, the stagehand would pop up right next to me. So Mike came over to me on multiple occasions. And Chester came by my corner in between songs and shook my hand, so that was cool. Got his autograph after the show too.
I thought it was funny how LP went about playing the bonus songs. After they did a quick rehearsal of The Catalyst, they spontaneously jumped into Bleed It Out. Then, while waiting for the actual VMA performance to begin, Joe and Mike played bits and pieces of various songs (the intro to Numb, the beat of Wretches & Kings and When They Come From Me, etc.). Chester sung the first line of Crawling after fans requested it, and Phoenix and Rob did the bass line/rhythm of a Red Hot Chili Peppers song for a few seconds (the name of the song escapes me right now). Then came the televised performance of The Catalyst, and after that, the band did New Divide. Chester brought his mic stand over to the backside of the stage (basically where I was) as compensation for being hidden from view during the Catalyst performance, which was cool of him. Interestingly, MTV had all the lights and effects synced up with New Divide and appeared to have filmed it, so I wouldn't be surprised if it popped up online one of these days.
Overall I thought it was a lot of fun. The band was super nice and seemed genuinely appreciative of everyone being there. Chester even stuck around for a good 20 minutes or so signing autographs for people as they were leaving.