I wonder if they had a rehearsal run on that. 
I also wonder how long it took to set that up?
bernd
If you lock closely in the area of the TV set smash you will see a pile of smashed TV's alod among their other video's is one or two on the making of this one.
I can recommend the treadmill one, and the other version of This to shall pass the one with the band uniforms on.
You have to look on the you tube site as the embedding is disabled!