OMG if you want to know, go to YouTube and search Sailor Moon Crystal. It isn't great footage, but it keeps getting re-uploaded despite TOEI's efforts to get it completely wiped off the internet. The opening, the ending, a scene with Usagi and Mamoru, Usagi's first transformation and a peak at the ending of the first episode. Honestly, if you haven't read the manga and want to be surprised by the first episode, don't view the footage lol
For the theme song, until I saw the opening, I didn't like it either. I LOVE IT NAO! :3 It really needs to be paired with the opening scenes.
In America, it starts streaming 6am eastern time I think. Which is 5 am central, 4 am pacific... ??? I am bad with timezones lol