Press the Home button on the Samsung TV remote
Select Apps
Open the Apps screen
Use the Search icon to find the app
Select the app you want
Choose Install
Wait for the app to download and install
Select Open to launch the app
Sign in if required
To move apps, go to Apps, then Settings, then select the app and choose Move
To delete apps, go to Apps, then Settings, then select the app and choose Delete
If the app is not available, update the TV software and try again