FXNOW

VZ FIOS is a supported cable provider, but it doesn't appear on the sign in page, so I have no way to use the app.

Then this is the app for you. However, if you want to watch FX shows then I advise another route.

Yep, another reviewer saying the same thing. Comcast Xfinity is not listed as an option, but redirects you to a site that validates that it should work, directs you back to the start. Endless loop. Great programming, crappy app. Stop leaving Windows users out in the cold!