I think people have looked at how technology have impacted areas like the music business and taken the completely wrong message about how it affects video content providers, at least sports specifically.
Music has become such a commodity that artists get $0.0000001 a playing on Pandora, Spotify, etc. instead of making several dollars on selling each of a million albums. However, the one thing technology couldn't replace (live concerts) is still making popular artists huge amounts of money.
When it comes to cable, many lesser channels will cease to exist, and content created by channels that make revenue only because of the bundled cable model will disappear. However, regardless of the delivery vehicle, you cannot legally cheaply replace the ability to watch a sporting event when it has all its value (in real time), so sports viewing rights are going to be the live concert equivalent in whatever the video viewing model ends up being. The people who generate popular sports content will continue to make big money.