How do I install apps on my Apple TV?

To install apps on an Apple TV, one needs to navigate to the home screen and open the App Store. Within the App Store, browse or search for the desired app. Once found, select it, and then choose "Get" for free apps or the price button for paid ones. If prompted, one must enter their Apple ID password or use Touch ID/Face ID if they've set up their device to permit this. After authentication, the download and installation process begins automatically. When the installation is complete, the new app appears on the home screen, ready to be opened and used. It's important to make sure that the Apple TV runs on a compatible operating system version for the app one wishes to install.