Secret History of Our Streets scoops double prize
An episode of BBC Two's Secret History of Our Streets about Deptford High Street has won two prizes at the Grierson British Documentary awards.
The programme, about how a thriving market became one of the poorest areas in London, won the reader's choice award and best historical documentary.
Radio Times readers voted for their favourite in the magazine's poll.
Artist Grayson Perry was named best documentary presenter for his All in the Best Possible Taste on Channel 4.
The prestigious best documentary series award went to David Nath and James Newton for BBC Four's The Year the Town Hall Shrank, which followed the effects of the economic downturn in Stoke-on-Trent.
Most entertaining documentary went to Nina Conti for her "mockumentary" Nina Conti: A Ventriloquist's Story - Her Master's Voice.
Other winners included Ben Anthony's one-off documentary 7/7: One Day in London, which won the best documentary on a contemporary theme award.
It focused on the aftermath of the London bombings in 2005 when 52 people died and more than 700 were injured in the capital.
The judges, lead by Emma Loach, praised the film as "tender and profoundly moving".
The programme won best single documentary at this year's Bafta TV awards.
Film-maker John Battsek took home the coveted Grierson Trustees Award. Battsek set up Passion Pictures in 1999 and has gone on to produce more than 25 documentary features including Searching for Sugar Man, which won a best documentary Oscar earlier this year.
Channel 4's Syria: Across the Lines won best current affairs documentary, while best arts documentary went to BBC One's Imagine: The Fatwa - Salman's Story, about award-winning author Salman Rushdie.
The ceremony took place on Monday evening at the Queen Elizabeth Hall on London's Southbank and was hosted by TV presenter and journalist Claudia Winkleman.
The awards can be seen on Sky Atlantic HD on Thursday at 21:00 GMT.