I live about 8 miles from the largest city in South Carolina. Before the switch to digital, I could get at least 6 stations with rabbit ears on top of the TV. More on a good day, sometimes from as far away as Atlanta. Now with digital TV and an amplified antenna I get one channel. One channel. OTA digital TV sucks.
I lived about 50-60 miles from the broadcast antennas, I put an antenna in the attic and picked up over 30 channels.
I currently live on the side of the mountain where the broadcast antennas are located but get 0, nada, squat.