Due South was very clever, entertaining, educational, and edifying. It was one show the whole family could watch and enjoy. Children should even be encouraged to watch it; the main character, a Canadian Constable living in Chicago (don't ask), is an excellent role model. Constable Fraser and his American buddy, Detective Veccio, were masterfully portrayed by Paul Gross and David Marciano, respectively. The supporting cast were likewise excellent, and occasionally actors who made guest appearances went on to stellar careers. Even though there was quite a lot of fast-paced action, there never seemed to be any shocking violence; Constable Fraser was too vigilant to allow the scenario to degenerate to that. He treats everyone with respect, whether they be his quarry, his derelict neighbors, high-ranking officials, or innocent bystanders. He manages to bring out the best in his American partner, who down deep is a good person but who has been hardened by late-20th-century cynicism.
The only thing wrong with Due South was that most Americans were too stupid or shallow to appreciate it (and as an American, I can say that).
Fortunately, the show is available on DVD.