Thanks to my current project leader, I'm now a Joost beta tester. 

What is Joost ?

Joost is a new way of watching TV on the internet. With Joost, you get all the things you love about TV, including a high-quality full-screen picture, hundreds of full-length shows and easy channel-flipping.

With Joost you have hundreds of full-screen shows from your favourite channels., Complete control over what you are viewing and a lot of extra features.

You can also look at this intro movie.

Here you can see several screenshots. https://www.joost.com/screenshots/

BTW : As soon as I have invitations, I will let you know.  At this moment I have 0 invitations.

Update : Joost faces problems providing video on demand. "The broadband video service Joost has been struggling to keep up with demand after extending its pre-launch testing by allowing trial users to send unlimited invitations to others".  More info here : http://informitv.com/articles/2007/05/04/joostfacesproblems/ .  So I hope I have soon some invitations.