NBC’s live televised broadcast of The Sound of Music was greeted with decidedly mixed reviews. At one point, I expected Ron Burgundy to make an appearance. But here’s what was not mixed: The ratings. It was a massive hit for NBC. Aside from sports (specifically, the NFL), the networks have been finding it more difficult to get us to gather around the tube for some appointment television. Long story short: Expect more live musicals. (And please don’t blame the messenger.)