What if it was a Spotify-like model. ~$4.99/mo unlimited streaming, money is pooled and then pay out a % to content owners based on # of plays each video gets? The more popular episodes earn more of the money.
That seems to be the direction Amazon is going with Kindle FreeTime Unlimited, also includes books and apps. Not the best library of content just yet, but it seems to have potential.
http://www.amazon.com/gp/feature.html?&docId=1000863021