At every single set there are multiple very high quality expensive video cameras taking footage.
Who has that footage and why the hell isn't it shown? Why film it if it isn't released in it's entirety? I'm sure they use small portions for promo clips and shit but there's serious gold to be shared and a few seconds worth of footage composed into a 5 minute promo for Coachella 2015 is garbage. They used older footage in commercials on the AXS channel during the streamings but that was extremely short as well.
and even when shown it never has original audio...that sucks too.