If he's buying into blockchain because it's decentralized, then it sounds like he drank the Kool-Aid. There isn't any proven use case for the blockchain yet except currency and that's already covered by Bitcoin. I can't think of anything one would do with video or streaming media that would even remotely require a blockchain. Those are some of the most centrally controlled assets in the world. Having them "run" in a blockchain on a bunch of individual computers is just crazy.