To quit (close) a Mac app normally, choose Quit from the app's menu in the menu bar, or press Command (⌘)-Q. If the app doesn't quit, follow these steps to force the app to quit.
How to force an app to quit
Apple TV — with the Apple TV app, Apple TV+, and Apple TV 4K — puts you in control of what you watch, where you watch, and how you watch. Apple TV 4K lets you watch movies and shows in amazing 4K HDR and with Dolby Atmos sound. 1 It has great content from apps like Amazon Prime Video, Netflix, Disney+, HBO Max, and ESPN 2 — and streaming now, Apple Originals from Apple TV+. 3 You can use Siri to control it all with just your voice. Check what version of OS X or macOS your Mac supports. The latest version of macOS, macOS Catalina, is supported on any Mac introduced in 2012 or newer. If your Mac doesn't support macOS Catalina, it might be supported by macOS High Sierra, which requires a Mac introduced in 2009 or 2010.
Press these three keys together: Option, Command, and Esc (Escape). Or choose Force Quit from the Apple menu in the upper-left corner of your screen. (This is similar to pressing Control-Alt-Delete on a PC.)
Then select the app in the Force Quit window and click Force Quit.
You can even force the Finder to quit, if it stops responding: Select Finder in the Force Quit window, then click Relaunch.
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Apple Tv App Mac Os X
How to force an app to close on your iPhone, iPad, or iPod touch.