Complex sentence: Not all of the "Heritage Minutes" episodes have actually aired.Eighty of them are available for viewing online (as listed below); however the episodes on the 1972 Summit Series, Cyprus conflict, and Canadian Peacekeepers are not available online through Historica Canada.
Split into simpler sentences: Not all of the "Heritage Minutes" episodes have actually aired. Seventy-nine of them are available for viewing online (as listed below); however the episodes on the 1972 Summit Series, Cyprus conflict, and Canadian Peacekeepers are not available online through Historica Canada.