Thanks for the suggestion. When I initially starting brainstorming on the idea, I had some Twitter integration included: auto-adding videos from your timeline (stolen from the Boxee folks) and hashtag "subscriptions"... but it started getting more convoluted to explain to people, so I thought I'd start more simply with just allowing folks to subscribe to "shows".

Obviously my execution is not resonating with people (great signup conversion rates, terrible usage rates), so when I have time I may reboot it as something more like what you're describing.

I still think there is something to the idea of improving the leanback and placeshifting experience for all this great long format web content that's out there (Rev3, This Week In, etc). I'm apparently just not smart enough to figure it out on my own ;p.