FYI -- I just posted the demo code for my Mix07 talk... It uses VS Orcas Beta1, Silverlight 1.0 Beta and the ASP.NET "Futures" .
I'd love to have feedback and comments!
MySilverlightTV.zip [24MB] -- Without example videos
mySilverlightTV(WithVideos) [93MB] - With example videos (Update:I got a fix, should work now!)
Oh, and here is the video, slides, writeup, on line demo and demo steps.
Thanks again to Steve Marx for LOTS of support on the development and Corrina for the excellent design work.