I'd pay much more than that for an way to "read" (watch) media RSS feeds on Apple TV. Instapaper, Pocket, and other "read later" services expose RSS feeds of their folders - and they are accessible without the user giving their Instapaper/similar password to a third-party app.
Anyone who sends videos to a read-later service like that - rather than using the service-specific version, like YouTube's own "Watch Later" list - would then be able to watch those videos on Apple TV. Basically, a media-only RSS reader (player) for tvOS.
(This would also work for YouTube's own RSS feeds and any others, but I don't see use cases for those.)
Anyone who sends videos to a read-later service like that - rather than using the service-specific version, like YouTube's own "Watch Later" list - would then be able to watch those videos on Apple TV. Basically, a media-only RSS reader (player) for tvOS.
(This would also work for YouTube's own RSS feeds and any others, but I don't see use cases for those.)