For anyone tuning in now, the event is already over, and German media report that it was a success. I can't find a decent English-language source yet, surely there will be reports on it soon. Most of the German articles have lots of immediately obvious inaccuracies as well right now...

EDIT: There's another post on the front page right now that has a recording of the event: http://www.iflscience.com/physics/watch-germany-switch-their... discussion at https://news.ycombinator.com/item?id=11026559