Robertson has covered many major events throughout his career, including the 1967 opening of Expo 67 in Montreal, the 1969 Moon landing (along with Percy Saltzman), many Olympic Games, Terry Fox's Marathon of Hope, the patriation of the Constitution of Canada, both the 1980 Quebec referendum and the 1995 Quebec referendum on separation from Canada, many federal elections, the death of Diana, Princess of Wales, the September 11 attacks in 2001, and the power outage crisis on both sides of the border of August 14, 2003.