I mostly disagree on TV and movies. They have a lot less replay value than songs, so there isn't much sense buying. Sure, there are exceptions, but season 1 of Two and a Half Men is not worth $35.
I agree; even before the internet, I rented movies, I didn't buy them. The movie/tv industry has always been massively overcharging for the privilege of owning the content, which is why the business of selling them never even really took off the way it did for music and video games where the value of ownership is much higher.