You can watch Youtube video from other contests:

Moscow: http://www.youtube.com/watch?v=rJyvUAeO7Zg

Rome: http://www.youtube.com/watch?v=9PRuR9GwgSo

Pekin: http://www.youtube.com/watch?v=T0y7H_GvjL0

Nottingham: http://www.youtube.com/watch?v=LybgFNOdtHI

New-York: http://www.youtube.com/watch?v=akfvo-91wGY