I recommend a 2 separate antenna set up.
Antenna system number 1.
Install a Winegard HD7698P antenna with a Antennas Direct CPA-19 preamp , aimed at about 30 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
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 , or ,
http://www.solidsignal.com.
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Antenna system number 2.
Install a Winegard HD9095P antenna with CPA-19 preamp aimed at about 219 degree magnetic compass direction.
For 1 Tv connected use no splitter.
For 2 Tv's connected use a , HFS-2D , 2 way splitter.
For 3 Tv' connected use a , HFS-3D , 3 way splitter.
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The 2 Separate antenna systems are Not connected together on to 1 coax.
The 2 Separate antenna systems are Separate all the way to the location/s of the Tv/s where a Remote control A/B coax antenna switch will be connected to the separate coax antenna systems at each Tv location.
http://www.radioshack.com , #15-1968 , or ,
http://www.mcmelectronics.com , #32-4425 .
Remote control A/B antenna switching is Channel Surfing Friendly , press the button on the hand held remote control , change antennas , and keep on Channel Surfing.
Using 1 antenna and a antenna rotator Is Not channel surfing friendly , must wait for antenna to rotate and not every one in the house will agree with the direction the antenna aimed.
As always , trees and tree leaves do a real fine job of reducing or blocking Tv reception and so do buildings or other obstructions.
It is best to install the antenna/s at a location that has the least amount to no amount of obstructions of any type or kind in the direction/s of reception.
The Tv/s Must Channel Scan for the Broadcast Tv Channels , sometimes named the 'Air Channels' or 'Antenna Channels' in the Tv set up menu because the Tv transmissions travel through the air from the transmitting antenna to the receiving antenna.
DO NOT channel scan for cable tv channels.
Here are places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.winegarddirect.com.