An update for the Apple TV brought with it three new channels for you to enjoy, the History Channel, Lifetime and A&E channels, granted you have cable subscriptions for them. This will allow you to enjoy a plethora of TV shows and programs. These include Duck Dynasty, Pawn Stars, American Pickers, Vikings, and many more.
The History Channel and the A&E Channel have both also updated their iOS Apps to allow subscribed users to stream live TV. If, however, you are not a paid consumer, you can still preview the shows and programs the channels have to offer.