It will be a four part episode airing at 6pm in the US. There's apparently a whole AT marathon today on CN, so this might be a tolerable time to tune in.
I'll make an another thread later on /f/cartoons for reactions and things when the Shit starts Going Down.
Moonside OP wrote (edited )
The folks over at Reddit will be setting their own stream, see for details here. You need to register an account at https://www.rabb.it/ before joining. I did it myself and it was a painless process. IDK if it's any good though, I'll see tonight.