OTA channels were mandated to broadcast in digital format a few years back. Most newer televisions have digital tuners built into them now, so if your set has a digital tuner you should be OK. If not, you can add an external digital tuner to your setup. Your nearest Radio Shack or Best Buy can help if your set doesn't do digital. Or, you could replace your older set with a newer one which is digitally capable. Your antenna should see either analog or digital so it should be fine. It's the signal format that changed.