Hi,
Follow the below steps:
1. Turn on your smart tv and go to app store.
2. Go to app store and install Starz Play.
3. Launch it and login with your credentials of Starz TV.
4. Go to Starz with any device, you should find a code specified.
5. Finally visit the Starz activation screen.
6. Then put the code received on the box.
For more information, visit us:
Activate.starz.com | Activate.starz.com code