Above the roof install a Winegard HD7698P antenna with a Antennas Direct CPA-19 preamp , aimed at about 280 degree magnetic compass.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Here are some above the roof antenna mounts ,
http://www.ronard.com/909911.html ,
http://www.ronard.com/34424560.html ,
http://www.ronard.com/ychim.html ,
http://www.ronard.com.
Buy the ronard antenna mounts at solidsignal by typing the word ronard in the solidsignal search box.
Here are some places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.winegarddirect.com.
For 1 Tv connected use No splitter.
For 2 Tv's connected use a HFS-2D , 2 way splitter.
For 3 Tv's connected use a HFS-3D , 3 way splitter.
Buy the HFS splitters at ,
http://www.hollandelectronics.com , also at ,
http://www.solidsignal.com
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All of the Networks , NBC , ABC , CBS , PBS , FOX , The CW , and Many more Digital Tv stations/channels will be received day and night.
As always , trees and tree leaves will reduce or block Tv reception and so will buildings and other obstructions.
Recommend mount the Tv antenna that is UP High and has the least amount or no amount of obstructions to the north west and west.
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Tv antenna rotators Are Not channel surfing friendly , Must wait for antenna to rotate , Not every one in the house will agree on where the antenna is aimed.
There are some Very Weak signal strength Digital Tv stations/channels to the north east , they are weaker of signal strength then the ones to the north west / west.