To sign in to HBO Max TV, download the Max TV app and create a login. You’ll then be able to watch your favorite channels on your favorite device. The HBO Max TV sign-in process can be completed through different methods. The first method is to create a login account, then log in with that account and enter your personal information and billing expiration date. Another way is to go directly to the website of the device you want to use, as most TVs or DVRs are read more