UK programmes have dominated Canada's annual Banff World Television Awards, with 10 of the 23 categories going to TV shows with a British involvement.
Jamie Oliver also won two Baftas for his campaign on school meals
The BBC won with five of its own shows, including Bleak House, Life on Mars and an episode of Extras with Kate Winslet.
It also had a co-production credit on Martin Scorsese's film about Bob Dylan, No Direction Home, which took the main prize and best arts documentary.
Channel 4 enjoyed success with Jamie's School Dinners and Young Black Farmers.
BBC Two's Extras won best comedy, while Life on Mars was top continuing series and Bleak House was named best mini-series.
Jamie's School Dinners saw chef Jamie Oliver launching a campaign to improve the quality of the food provided to children in British schools.
He delivered a petition to 10 Downing Street and met British Prime Minister Tony Blair to complain that only 37p per pupil was allocated to ingredients.
Young Black Farmers followed the progress of nine children from ethnic minorities as they switched their lives from urban estates to a farm in Devon.
Martin Scorsese admitted to being a "great fan" of Bob Dylan
Other programmes winning the factual categories in Banff included White Platoon, Baghdad 2004, which followed US soldiers in Iraq over the course of a year.
It was broadcast by the France 2 channel and took the feature-length documentaries prize.
The German production Speer and Hitler: The Devil's Architect - shown on ARD - won best history and biography programme.
It told of the life of Albert Speer, who was Adolf Hitler's chief architect from 1933 to 1945.
No Direction Home was broadcast on PBS in the United States, as well as BBC Two in the UK, and featured new interviews with reclusive musician Dylan.
It also contained unseen footage from his early life and his most prolific period of creativity. Director Scorsese described himself as a "great fan" of Dylan.
Extras was Ricky Gervais' first major TV series since The Office
The BBC - a partner in the production of No Direction Home - also won factual awards for Mischief: A Dirty Weekend in Hospital, first shown on BBC Three, and for Children of Beslan.
This documentary recounted the 53-hour school siege in the remote North Ossetian town of Beslan in which more than 330 people died.
Two special jury prizes were also awarded, to Y in Vyborg and The Rise and Fall of the Russian Oligarchs.
The first, a Finnish production, told how two young architects coped with the hardship of World War II and was based around the footage they filmed at the time.
The latter was made by European broadcaster Arte, profiling some of the capitalists now making their fortunes in traditionally Communist Russia.