Question: how to unlock dtv channels?
Answer: Connecting a DTV Box to an Analog TV. Connect the coaxial cable wire attached to the TV antenna to the DTV box's RF In nodule (usually labeled "Ant. In"). ... 
Unlock DTV Channels on DTV Box. Aim the DTV remote control at the DTV box and press "Menu." ... 
Unlock DTV Channels on Digital TV. Turn on the TV.