The procedure to download apps on Sony Android TV is similar to what you follow on an Android smartphone.

[1] On the home screen of your TV, highlight and select the Apps section.

[2] Hit the Get more apps section.

[3] It will open up the Google Play Store. You also open the Play Store from the Apps section.

[4] Navigate to the search menu with the help of the right arrow key.

[5] A virtual keyboard will appear on the screen. Use it to type and search for Peacock TV.

[6] Select the app and click Install.

[7] After installing the app, click Open to launch it.

https://www.peacockttv.net/