Golly. We're sooo close to getting a rough, web-playable demo of what you're looking for it hurts - a better way to entertain people (with a gamery blend of TV and interaction).
It's been a painful slog, though - trying to create rich content's been both more expensive and more daunting then most web-centric MVPs.
Is there anyone else already actively working in this space? I'd love to find more folks to network and bounce ideas off of. (And I'd like to hear how you're dealing with the cost of content production. :P)