To change the wallpaper on your Smart TV, follow the steps below:

1. On the Home screen of the Smart TV, select the Settings option.
2. From the Settings menu, select Display. Under Display, select Wallpaper.
3. Select Set Wallpaper. You will then be able to select an existing image on your TV or connect a USB device to upload your own wallpaper.
4. Choose your desired image and select Apply.