If you're using an Apple TV, go to hbomax.com/tvsignin and enter code into the input box just as you would for the Smart TV.
Install this HBO Max app on your Apple TV.
Please fill in the HBO MAx username and password to continue (or Cable Provider in case you require).
For additional information, go to Hbomax.com/tvsignin.
After entering the activation code on the Apple TV screen, select then to submit until you are done.
Activate Hbomax tv from www.hbomax.com/tvsignin
HBO Max allows users to stream video on demand, such as movies, shows, sports and more all in all one place. You can access HBO Max on your device using the hbomax activation code. To learn more about HBO Max setup and registration check out their official website: hbo max/tv sign in and follow the steps to setup.