At this time; we do not support the Microsoft Edge browser and do not have a current Estimated Time that it will be. We do still support the use of the base Internet Explorer, Firefox, and Chrome on Windows 10, as seen in our compatibility article.
You should still have Internet Explorer's Desktop Mode available on your Windows 10 computer, just in case you don't want to download any other browsers at this time. I would keep an eye out on the Compatibility Article, as this will be updated if and when the Edge browser does become supported.
I hope this helps!
Sling Media Technical Support