The Samsung Galaxy S 5 has an IR blaster so you can control your home theater in not only your living room, but you can also control your TVs and cable/satellite boxes in other rooms as well. Samsung offers you two different apps to do this. One is the Smart Remote that comes pre-installed and the other is WatchON, which is available in the Play Store.
Both apps work very much the same way, so you can use whichever one you prefer. You can setup all your equipment to control, but these apps also tell you what’s on TV as well as recommend shows based on your favorites. WatchON does seem a little more robust and it does provide you with opportunities to buy or rent movies and TV shows via Samsung’s own digital store.