To sign in to HBO Max on your TV, start by downloading and opening the HBO Max app on your smart TV or streaming device. Next, select "Sign In" to see a unique code displayed on your TV screen. Using your smartphone or computer, visit hbomax.com/tvsignin and enter the code from your TV. After that, sign in with your HBO Max account credentials or your TV providers login information. Once you've successfully signed in, your TV will automatically refresh, giving you access to HBO Max's extensive library of movies, shows, and exclusive content.