If you’re a Playstation 4 owner, you’re probably familiar with HBO Max. The service offers a variety of programming, including current and past seasons of popular shows like Game of Thrones and Westworld. But how do you sign in? To start, head to the main menu on your Playstation 4 and select “Settings.” From here, scroll down to “System” and select it. On the next screen, you’ll see “Accounts” at the bottom. Select it and then choose “Sign In.” Enter your HBO Max account information (username and password) and hit “Sign In.” You’ll be taken to a screen where you can select which channels you want to subscribe to. Once you’ve selected all the channels you want, hit “Sign Out” at the bottom of the screen. ..