Included on the Fan Favorites: The Best of MacGyver DVD.
Opening shot, a helicopter flies past a very impressive cliff face. That is Stawamus Chief, the largest granite monolith in North America (an hour's drive north of Vancouver). It was used is S3, E8 "The Widowmaker".
Christopher Gaze plays a cabbie in this episode (uncredited). He would also appear in season 6 (Visitors).
At around the 10 minute mark (with commercials) MacGyver introduces himself to his rescuee by saying, "Alexander Shannon, James MacGyver". This was during the opening before the main plot of the 2 part story.