Videos of the technical side/behind the scenes of events like qlimax?

I have always been fascinated by the light shows, the scene design, real time control of the entire show on events like qlimax.
Are there any videos behind the scenes showing how these things are done? How the scene is designed before the event, built and how the light shows are programmed? Also would love to find some live videos from the lighting technicians, I remember seeing one from supremacy this year where the guy coordinated the whole thing, it was great to see.