A wide variety of video material distributed by the Chaos Computer Club. This feed contains all events from 33c3 as mp3
https://media.ccc.de/c/33c3
33C3 Infrastructure Review (33c3)
NOC, POC, VOC and QOC show interesting facts and figures as an excuse to present all the mischief they’ve been up to this year. about this event: https://fahrplan.events.ccc.de/congress/2016/Fahrplan/events/8243.html