Free idea: Create an app that provides a TiVo-like experience to all web video. You could "record" channels from YouTube the same way you'd queue TED, or even Hulu+, Netflix, et all.
Your app would automatically pull new streaming episodes for you to watch and manage the same way people use DVRs on televisions.
If internet TV, and "television app" really are the next thing...if you build an amazing version of this now, you'll be set.
Not only that, but you'd encourage more people to produce content, since viewing it and following new episodes would all happen in one place.