A TV provider is the company you pay in order to get your television service, like a cable company, a satellite company or a telco (also called a telecommunications company).
To view participating TV providers available and sign in, select an episode or the "watch live" section. If your TV provider is not listed, don't worry. We're working hard to add more providers in the near future and you can still watch several episodes without signing in.
You can always contact your provider and ask them to carry Freeform.