After six decades in the broadcasting business, CTV National News anchor Lloyd Robertson will sign off for the final time Thursday night.

In the hour leading up to Thursday night's newscast at 11 p.m., CTV will air the one-hour documentary "Lloyd Robertson – And that's the kind of life it's been," directed by Robertson's daughter, Lisa.

Over his six decade career – 35 years spent with CTV – Robertson has covered some of the biggest stories of our time, including the Quebec Referendum, Expo '86 and the Gulf War, as well as 14 federal elections and nine Olympic Games.

The story that stands out amongst all the others in his years of news coverage, Robertson said, is 9/11.

"In terms of effect on our lives, no one tops that one," Robertson told CP24 political analyst Stephen LeDrew during an interview last week.

"In the last 50 years, going back to the time of the JFK assassination, there hasn't been that kind of shock value in a story."

While he will be leaving the role of chief anchor, Robertson will continue his work for CTV as host and chief correspondent of the documentary series W5.

"I'm not going anywhere just yet," Roberston said in a release. "This is just a new chapter in a career that I feel so fortunate to have had."

Robertson was awarded the Order of Canada in Feb. 1998, and became the first journalist inducted into Canada's Walk of Fame in 2007.

Most recently, Robertson was honoured with the Gordon Sinclair award for broadcast journalism at Tuesday night's Gemini Awards.