TV signals can be picked up with a coat hanger......no such thing as a digital antenna.
Antenna head needs to be pointed towards transponder tower(s) to receive the broadcast signal.
Antenna amplifier needs to be turned ON
Antenna 'aimed'
TV input set to 'air' or 'antenna'
Then auto scan for channels
A few good websites for aiming antenna:
DTV MapsTV FoolAntenna WebSome TV digital tuners are better than others.
Also if signal strength is marginal it may come in, may get lost, may pixel....depends on distance to tower, terrain and obstructions