Since June 12, 2009, full-power television stations nationwide have been broadcasting exclusively in a digital format. If you’re still using an analog TV set, you have to connect it to a digital-to-analog converter box to watch digital programming. If you have not yet done so, you can still make the switch now:
Can I Still Use My Old Analog TV Set? How?
Can I Use My UHF/VHF Antenna to Receive DTV?
Did the DTV Transition Affect TV Sets That Are Connected to Cable Services?
How Do I Improve DTV Signal Strength?
Can DTV Reception be Affected by Moving Vehicles and Weather?
How do I connect my portable, battery-powered analog TV to a battery-powered digital-to-analog converter box?