Heritage Heroes is a TV series running on BBC World News, available to most Calgary cable subscribers. First ran in the summer, it is being re-shown starting January 15 2011, looks like it runs at 3:30 am and 4:30 pm on Saturdays, for a half hour.
Note: It did not run in this timeslot last weekend. Go figure.
Check the schedule:
http://www.bbcworldnews.com/pages/schedules.aspx
Series website:
http://www.heritageheroes.org/