Just wanted to let everyone know how to stream Youtube playlists instead of just a single video. In this way you can change the content playing in your world easily outside of Sansar by just changing the items in the playlist in Youtube and not having to go back in and change the media url in the world, have people relog, etc.
Media URL for playlists: 
Feel free to use the playlist in the link. It is my EDM retro songs I recorded.
Thanks for sharing, but I couldn't get the URL to work...
It appears to be pointing to this base playlist though? https://www.youtube.com/playlist?list=PLYuaqec79vK48un2WgV6VaR3Ditxy4Wvw
AH, give this a go to autoplay your YouTube playlist:
For anyone else trying to make this work with your YouTube playlist, copy and paste the playlist ID after "list=" into the above URL:
https://www.youtube.com/embed/videoseries?list=[PASTE_ID_HERE]&autoplay=1&loop=1&controls=0
And you can learn more about media surfaces!
Awesome.
@Torley: Are there plans to try to synchronize audio or video streams among clients? It would be nice to have that for use with complex interactive experiences. SL doesn't presently afford this, but in principle, Sansar could tack extra parameters to, say, a YouTube video representing the current position in a video. There may be other methods for synchronization, too. Thoughts?
@Galen Yes, that's on our roadmap to get to in a future version of media surfaces. Also, support for YouTube live streams. We know how useful all that is — having social experiences reacting to the same video at the same time can lead to very emotionally meaningful moments!
Right now, in-scene audio emitters can sync playback position, so to have this apply across the board to media surfaces would be valuable.
Sorry I had copied an old example that didn't work in the post. Here is what I actually had working:
Sorry about the confusion.
I am trying to do this for this play list- But only the first one plays and quits instead of going to next song ( or looping)
but I WANT this list -
https://www.youtube.com/watch?list=PLmGEbmwqAA4IYqCuH3bHzTVVtdpG6N4IJ&v=UU4nEOYisCs