It seems that Last.FM has started rolling out their video service and both that and LastTV are mentioned on the Wired Blog.
Welcome Wired readers!

After some very nice heads up from MR E, I researched and implemented some changes in the way the player works. Our player now loads clips in a way which is more similar to how YouTube does it.
Technical: We now use swfobject and at the end of each clip the gotoNext() function is called. Also […]