Just some quick thoughts this morning.
Broadcast TV is due for a renaissance. There are several things broadcast can deliver that broadband can't: picture/audio quality in realtime to all devices (nothing matches the install base of television.) The problem broadcast has is saturation - it tried to go Long Tail and YouTube cleaned up that entire game.
YouTube *cannot*, however, broadcast in HD, uninterrupted. The net don't really allow for it. Cloud is best for archiving.
So two infrastructures have emerged with clear implications: both are broad and immediate, but TV is one-way. Not a bad characteristic, per se. Properly understood, its still a powerful medium. People still view it as the ultimate validation.
Broadcast requires a massive upfront investment (for an artist) relative to broadband - that's the barrier of entry in a way. Right now it seems you grow up on YouTube, but crossover to broadcast (or live shows) later.
Whats missing is a bridge of small-to-medium venues that are all-ages accessible. This is why house concerts are becoming so popular?