I'm trying to understand how content is hosted on lbry.tv and this is what I found: https://lbry.com/faq/host-content
From my understanding the content is hosted by the users when they are online, otherwise it's on the website. Not sure this is really decentralized as it still relies heavily on the storage provided by lbry.
Supporting embedding can't hurt :)
also bittube would be cool too :D