I was there yesterday. Stroke of luck I had stuff cancelled and my day was free. Was on the floor, close to the stage. Lots of waiting as usual for TV shows, but worth it as I haven't seen them since May. Live, they sounded GREAT. As someone else pointed out, Leno is *notorious* for bad audio for bands when shown. The crowd was into it as Black Heart is very catchy. Jay's a fan of them.
They were tight, but I still think that the musicianship of Rob, Dean and Eric sometimes overwhelms Chester. I've said it before, I'll say it again. the three of them looks so happy and relaxed without the extra behind the scenes stuff eating away at them.