For reception of the Local major english language channels , NBC , ABC , PBS , FOX , CW , and also non major networks , Antenna Tv , This Tv , Cozi Tv , and infomerical channels.
And Spanish language channels , Estrella Tv , Azteca America , Telefutura , Telemundo , and Korean , Chinese , and other languages.
For reception of the Locals, Above the roof install a Winegard HD7696P antenna aimed at about 131 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
XETV-DT UHF channel 23 - The CW channel is Weak signal strength that is why the HD7696P antenna is aimed at 131 degree magnetic compass direction.
The other much stronger local tv stations/channels will be received at angles to the HD7696P antenna.
KFMB-Tv channel 8 CBS.
KGTV-DT channel 10 ABC.
KBNT-CA channel 25 Univision.
Are 6.8 miles away and are LOS=Line Of Sight and are Very Strong Signal Strength.
KSWB-TV Real Channel UHF 19 is Strong signal strength and is 18.6 miles away.
Well the point is that the Locals should all be received with the HD7696P antenna.
Try reception without a signal amplifier first.
For 2 Tv's connected use a simple common 2 way splitter.
For 3 Tv's connected use a simple common 3 way splitter.
XETV The CW is weak signal strength , however HD7696P antenna signal strength gain might provide enough added signal strength for 2 or 3 Tv's.
If not then install a Channel Master CM3410 distribution amplifier.
Here are some places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.winegarddirect.com ,
http://www.channelmasterstore.com.
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Your directions of reception are , north - north west , north east , east , south east.
I am wondering , about this statement , "including one directly behind my house".
Does that mean that a 2 story house is between your house and the stations to the , north-north west??
And is your house a 1 or 2 story house??