Here is a 1 antenna shot at receiving the Canada Digital Tv stations/channels that are weak signal strength and the Buffalo USA Digital Tv stations/channels that are strong signal strength.
If 1 antenna does not do it then will be required to use 2 antennas to receive both the Canada and USA Digital Tv stations/channels.
For Canada and USA reception with 1 antenna install a Winegard HD7696P antenna aimed at about 305 degree magnetic compass direction for Canada Digital Tv stations/channels.
And the strong USA Digital Tv stations/channels should be received at front angles and back angles to the HD7696P antenna.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
As always , the starting aim direction of a antenna is the --> starting aim direction of a antenna.
The aim direction can be adjusted for best reception.
Most Digital Tv's have a signal strength meter and some Digital Tv's also have a signal quality meter.
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Here are some Above the Roof antenna mounts.
http://www.ronard.com/909911.html , if using the tripod antenna mount use the 5 foot tripod antenna mount.
http://www.ronard.com/34424560.html , if using the eave antenna mount use the #4560.
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 or buy from ronard.
Here are some places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.winegarddirect.com.
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Install a Winegard HDP-269 preamp.
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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.solidsignal.com , or ,
http://www.hollandelectronics.com.
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As always , trees and tree leaves do a good job of , reflecting/multipath , absorbing , blocking , Digital Broadcast Tv reception and so do buildings and other obstructions including your own roof and house.
It is best install the HD7696P antenna at a location that has the least amount to no amount of obstructions of any type or kind in the directions of reception.
At your location that is , north west , west , south west , south , south east.
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The Tv/s Must Channel Scan for the , OTA= Over The Air , Digital Broadcast Tv stations/channels , often named the 'Air Channels' or 'Antenna Channels' in the Tv Setup Menu because the Tv transmissions travel through the Air from the transmitting antenna to the receiving antenna.
Some Digital Tv's will automatic channel scan for cable tv channels.
DO NOT channel scan for cable tv channels.
Go into the Tv Setup Menu and select , 'Air Channels' / 'Antenna Channels'.