It is possible to legally watch free over the air terrestrial television via the Apple TV. This can easily be accomplished by connecting an HDHomeRun to your home network along with an ATSC antenna to pull in free over-the-air high definition local channels.
It's basically the equivalent of connecting an antenna to your TV. TVs generally include a tuner built in, which allows the unit to display the channels pulled in from over the air. Wouldn't it be cool, though, if you could broadcast all of those channels on your home network? By using an HDHomeRun, you can easily tap into free high definition television streams via the Apple TV and an app like Kodi. You can even watch live TV on your iPhone, Mac, or other devices.
In this video tutorial, I'll show you how easy it is to get live local channels on your Apple TV. That means you can watch high definition streams for NBC, ABC, CBS, FOX, and more. There's no monthly subscription involved, or anything like that, which makes this perfect for cord cutters. Have a look.