If you are a Sling TV subscriber you can now use your Sling subscription as authentication for even more apps and websites. Giving you access to a ton of additional content on apps like FOX NOW, Natgeo, FXNow, SyFy, Bravo, and more. Here is a list of apps that Sling TV supports app authentication: FOX NOW (Android … Continue reading Your Sling TV Login Now Gives You Access to More TV Anywhere Apps