BroadwayHD is a platform that is offering a 7-day-free-trial to stream Broadway classics.
Demo
https://www.youtube.com/watch?v=Hv95x4V3K-g
Trailer
https://www.youtube.com/watch?v=J5qeTQXn3r4
Tutorial
https://www.youtube.com/watch?v=JD7dR5r_jgQ