None of the provider sites are actually logging in.
I am signed in with my verizon.net email address. I click on the FiOS TV Online Link. I click on a provider link like "Adult Swim". I choose a video on the site and I get a message box stating: "You must sign in before accessing full-length episodes. Click the login button to sign in." I click the login button on the page. A service provider selection is shown, I choose Verizon . A message box and spinner appears stating "Signing in..." The page reloads, I choose a video and the same login notice appears.
This is happening on multiple TV Online sites.