A couple of years ago, BBC Radio 4's history series "In Our Time" presented a very worthwhile discussion on an important period of Church history: the founding of the great mendicant orders, the Franciscans and the Dominicans. You can read about the program and replay it (41 minutes) at Radio 4's website.
Considering how shallow some BBC treatment of religion is, the show's producers deserve credit for presenting something so informative, non-polemical, and respectful of the audience.