Canada and the USA use the same transmission and reception - ATSC. Read and understand this about , Real Digital Broadcast Tv Channels , Virtual Digital Broadcast Tv Channels , Analog Tv Channels ,
http://forum.tvfool.com/showthread.php?t=695. Here is some information about digital tv reception in Canada and USA ,
http://www.tvtechnology.com/117022 ,
http://www.tvtechnology.com/article/105462 ,
http://www.digitalhome.ca/forum ,
http://www.crtc.gc.ca/eng/home-accueil.htm ,
http://www.friends.ca ,
http://www.saveandreplay.com ,
http://www.trentondistributors.com