Yesterday, during the most uninteresting lunch event of the year, I got a tip from Jourik from our colleagues at Moonboggle (did I get that right?). It's a mashup by Tim Bormans (a student) combining the playlist composition feature of LastFM with music videos from YouTube.
http://tv.timbormans.com
It's a really cool idea, imagine this in decent quality full screen video (e.g. from Google video).
I follow the internet radio scene with particular interest lately, and with a good reason. Keep an eye on this blog in the coming weeks :)
By the way Tim, if you read this, drop me a mail because I may have an opportunity for you.