I've seen a couple of sources that said that CKCK-TV, Ch. 2 in Regina, SK actually carried a secondary affiliation with CBS from 1954 to 1970. How was this possible? I've heard of some US border full power & LPTV TV stations that carried some Canadian TV networks.
CKCK-DT - Wikipedia
CKCK-DT | History of Canadian Broadcasting
CKCK-DT - Wikipedia
CKCK-DT | History of Canadian Broadcasting