The most substantial part of the update to the 4th generation of the Apple TV is the addition of an App Store. Awesome! There are a nice number of apps so far. Not too many, just yet. Let’s look at installing an app. To do so, start your Apple TV and from the home screen, click on the App Store icon. From the App Store, search for an app and click on it. If you like the screenshots, click on the Get button (it’s a free app so it says Get). Once installed, click on Open. The app opens. Yay. Very easy. Some of the apps from your other devices may…