If you were to do weekly movienights you should:
>1st: Announce with clarity the time which is going out
More here since this is a small board and I doubt many lurk here 24/7
>2nd: Announce it with enough space between event and announcement so that enough anons can notice it.
An example would be announcing one week earlier, just to give an idea
>3rd: Be clear about what is being streamed
Post poster of the movie, title, subtitle, small description, so there's a better idea of what anon is getting into
This was always done with movienights back on /bmn/, the brenaissance, and with /vg/'s E3 movie streams, so it's a good thing to take this into account.