What everyone misses is... What everyone misses in thinking that broadcast or cable/satellite is going away is where are you going to get new TV shows if these mediums die?
Sure, right now, the tech savvy can grab anything they want for free and store it forever, or not. Or people with Netflix can watch past seasons of TV shows over streaming.
But what happens when a TV show doesn't have a place to broadcast? If it's not making money weekly from advertisements, no one is going to want to make a 30-minute or hour long weekly show that they'll package in a DVD boxed set a year from now.
No one has made a successful Internet only show so far. That's not to say it won't happen. But until that does, there is no proven reason for someone to want to make a show for Internet viewers.
If the shows on Hulu weren't broadcast on TV, they certainly wouldn't be on Hulu.
There will certainly be a shift at some point, no one can deny that. But expecting it to be soon or immediate is just not seeing the big picture.