Depending on where you live, an indoor antenna can work really well, or not at all. If you live in the middle of a city, it's likely you're very close to a broadcast antenna. However, if you live a little further out then you may not be receiving the strongest signals and checking digital TV coverage maps first may help you somewhat. Correspondingly, if you do live in a poor coverage area, with weak signals, an indoor antenna may not be for you. We tried using the antennas at a semi-urban location in New York State's Hudson Valley miles from the city and none of them worked at all, even the signal-boosting Smartenna. That's why it's best to test the signal strength waters with a cheap antenna first, instead of spending a hundred bucks on something that might not work in your location.