So if you're watching at work like I am or using a computer, this is the live NBCSN link:
http://stream.nbcsports.com/nbcsn/?referrer=
If you have a cable package that includes NBCSN, then you should be able to access the stream through the NBCSN app or through the online stream. This of course if you live in the lower 48 or US.
Anyone else having any luck elsewhere?