If you are Mofawtar 4, Mofawtar Max, Mofawtar Prime 4, Mofawtar Prime 5 or Tamayouz customer; you are entitled for stc tv Premium Package as part of your benefits.
You can activate your free stc tv subscription by simply downloading the app on your mobile and clicking on "sign in" with your mobile number.
After that, you can log in to stc tv on any Smart TV or device that supports it using your mobile number.