To find antenna installers , in the Google search box type in , structured wiring winston-salem nc . or you can try zipinstallation.com . You can receive the channels in green with a simple indoor antenna ,
http://forum.tvfool.com/showthread.php?t=233 ,
http://www.kyes.com/antenna/pointing/pointing.html , Read and understand this about Real and Virtual Digital Broadcast Tv Channels. One needs to know the Real channels so one can know the correct antenna to use.
http://forum.tvfool.com/showthread.php?t=695 , For the Charlotte stations 215 magnetic compass , I recommend a Antennasdirect 91XG UHF antenna with a Winegard AP4700 preamp. It is good to know the directions of , North , South , East and West. It is good to read a compass.