I live 40 miles away from the actual TV stations and 30 miles from the antennae yet I can not use OTA. Why? Because there are some mountains in between me and the signal. It would be nice though...
I live 40 miles from the antenna (Mt. Wilson), and get ~53 channels including subs. Fine tuning of a directional antenna + preamp is needed. I've got +1 mountain between me and a Mt Wilson. -- Canada = Hollywood North