Stream videos directly from youtube

Hello to all,

I 'm Dimitris and just found out about this excellent project!
I just want to ask if there is an option to stream video directly from youtube and not import/convert and store to my server.
That way some videos that are available on youtube (or any other service) not have to serve it from my server and reduce bandwidth usage.
Is there a way to do it?
If not, it would be a very nice feature to have.

Thanks in advance