This show is known as Air Disasters in the US and Canada but is called Aircrash Investogation in Australia and parts of Europe. The Narrators however are different in the two different versions. You can find more information about the episodes on the IMDB Mayday page than you can here on the Air Disasters page.
The French-Canadian version, "Danger dans les airs", features actor (and weekend bush pilot) Gaston Lepage as the narrator, but also as the host, appearing on screen before and after the film, and before commercial breaks.
English, French, Spanish, Japanese