Your receivable Tv stations are moderate to Very Weak of signal strength , the Tv antenna will be mounted above the roof in such a way the the antenna has the clearest possible view of the Tv transmitters. I recommend a Antenna Craft U8000 with Antennas Direct CPA-19 preamplifier, aimed at about 350 degree magnetic compass , these are the weaker Tv stations , the stronger Tv stations to the south will be received through the back side of the antenna. Here is how to aim a antenna ,
http://www.kyes.com/antenna/pointing/pointing.html. Read and understand about , REAL Digital Broadcast Tv Channels , Virtual Digital Broadcast Tv Channels , Analog Broadcast Tv Channels ,
http://forum.tvfool.com/showthread.php?t=695.