Wow! This is a great idea. While we're programming this hypothetical Broadway Channel, let's also suggest Broadway news features, too, about what's coming, going, and on, including the business point of view. I'd adore a pay-per-view service to watch some shows, as I don't get into NYC nearly as much as I'd like. It would add revenue to shows, too, besides relying on strictly box office. Nevermind that it would also possibly broaden the viewership to include people who aren't familiar with, or haven't been exposed to live theatre.
"And the postman sighed as he scratched his head, you really rather thought she ought to be dead..."