Ok for the American Tv stations here is my recommendation. I suggest a Winegard HD7698P with a Winegard HDP269 preamp , mounted above the roof , aimed at 179 true - 192 degree magnetic compass.
http://www.canadapost.ca/shopper/ite...H-BAND-HD7698P ,
http://www.canadapost.ca/shopper/search?keywords=hdp269 . Depending on number of Tv's that are connected , use a Channel Master CM3414 4 way distribution amp or CM3418 8 way distribution amp in the basement where you say the coax cables go out from to the Tv locations. Saveandreplay has the distribution amps ,
http://www.saveandreplay.com . Also put a 75 ohm terminator on any unused output ports of the distribution amp ,
http://www.canadapost.ca/shopper/ite...rminator-85038 , 10 in a pack for $7.98. And now for the Canada Tv stations.