Install a
http://antennasdirect.com , C2V , UHF/VHF antenna with the reflector screen removed. Mount the antenna above the roof. Aim the C2V antenna at about 80 degree magnetic compass. With the reflector screen removed the antenna will receive 2 directions front and back for the reception of the digital Tv stations/channels to the , north-east , east , south-east , south-west. Install a Channel Master CM3414 distribution amplifier to distribute the weaker channels at the bottom of the yellow reception zone through out the system. Here is how to aim antennas ,
http://www.kyes.com/amtenna/pointing/pointing.html. Here are places to buy antennas and etc. ,
http://www.channelmasterstore.com ,
http://www.solidsignal.com ,
http://www.amazon.com