This will ensure a higher level of quality on your TV, and the cable will be less prone to breaking or succumbing to the elements. In general, though, setting your TV's input to "TV" and flipping through channels should do the trick. Can I connect a Terk Outdoor antenna to the outside of my house by disconnecting the existing Time Warner connection and hooking my antenna to their connection and support two televisions? You can usually find these online or in tech stores. Generally speaking, you shouldn't have to adjust a flat antenna very much, since they're both more powerful than traditional antennae and multi-directional. You may also need to move items in your home out of the way of the antenna's connection path. You can use a digital antenna if your TV supports it, or get a converter box.