I wanted to try to stream on Twitch for fun. If I just stream now and then, that's probably not a problem. But what if I announce a stream on Twitch? Is that already a "broadcasting time"?
And are there any other legal matters to consider? If you're doing Let's Plays you should contact the publisher first. Do you have to do that with streams?
I would not fetch me until one of them responds that I need one as far as I know most of the German streamer, not just the big ones like Gronkh, have been asked to do so
Audiovisual moving image offers are then classified as broadcasting if they
linear, ie live,
Twitch is live.
can be seen by more than 500 viewers / users at the same time
Is technically possible, even though you will probably have fewer viewers. Here you should see if you can set a restriction on Twitch.
are editorially designed and
How editorial a Let's Play is can be argued about and also depends on the way of Let's Play.
"along a schedule" are distributed regularly and repeatedly.
A "broadcasting schedule" does not exist if only occasional, sporadically, at very irregular intervals and / or only occasional event-related live streaming.
If one of these points is not fulfilled, it does not count as "broadcasting" and thus does not need a broadcasting license.
And when is a stream editorial? I would just play and tell (politically correct) nonsense.
Some Let's players tell, for example In historical games, something about the time and history the game is playing.
Or strategies for playing boss-fighting are explained.
I would consider that as editorial.
When "nonsense" it will probably not be classified as editorial.
But to put it legally correct: It depends on the individual case.
Okay, well, I think Overwatch will not be so editorial.