To enter your disneyplus.com login/begin 8 digit code and activate Disney+ on your TV, follow these steps:

Open Disney+ on Your TV: Launch the Disney+ app on your TV. If you haven't installed it yet, download it from your TV's app store (e.g., Samsung Smart Hub, Roku Channel Store, Apple TV App Store).

**Select "Log In": **On the Disney+ app home screen, choose the "Log In" option. This will display an 8-digit activation code on your TV screen.

**Visit the Activation Website: **Open a web browser on your computer, tablet, or smartphone. Go to www.disneyplus.com/begin or disneyplus.com/start.

**Sign In to Your Disney+ Account: **If you aren't already signed in, you'll be prompted to enter your Disney+ email and password.

Enter the 8-Digit Code: On the activation page, you will see a box to enter the 8-digit code displayed on your TV.
Type the code exactly as shown on your TV screen and click "Continue."

Complete the Activation: After entering the code, your TV screen should automatically refresh and log you into your Disney+ account.

You can now enjoy all the content Disney+ offers on your TV! If the code doesn't work, make sure you're entering it correctly and that it's still valid, as some codes expire after a few minutes.

More info: https://kristenforourkids.com/disneyplus-com-login-begin-8-digit-code/