Behind-the-scenes look at Doctor Who. The Doctor has a new companion, Martha Jones. By sheer courage and determination, she has wowed the Time Lord and been offered a place on board the Tardis. Featuring exclusive footage from the third series and interviews with Freema Agyeman, who plays Martha, David Tennant and head writer Russell T Davies, the programme examines the development of Martha's character and the huge interest behind the casting of the new companion.

Behind-the-scenes look at Doctor Who. There's a report from the green screen studios to witness how some of this series' most complicated action sequences were shot. Set in New New York, far in the future with endless space-age motorways and plentiful CGI, the filming of Gridlock was a big challenge for all involved. Plus, how guest star Ardal O'Hanlon was transformed into his character Brannigan and chats with David Tennant, Freema Agyeman and head writer Russell T Davies.

Behind-the-scenes look at the making of Doctor Who episodes. Daleks in Manhattan is set in New York in the 1930s and writer Helen Raynor goes Stateside to capture some inspiration by looking out at Manhattan, walking through Central Park, and seeing exactly how people lived in tenement buildings in the 30s.

Behind-the-scenes look at the making of Doctor Who. There's a trip to to Manhattan to find out how to recreate 1930s New York in the heart of south Wales. The producer and director of episodes four and five visit the New York locations they plan to reproduce and the visual effects supervisor shows what they need to make Manhattan in Cardiff.

Behind-the-scenes look at the making of Doctor Who. An episode just wouldn't be the same without a monster, but the creation of such a beast is never easy, especially when it's purely computer- generated. There's a look at some of the prosthetic and CGI monsters created since the series returned in 2005 and an interview with guest star Mark Gatiss.

Behind-the-scenes look at the making of Doctor Who. There's access to the programme's art department and a tour of the mind-blowing spaceship sets and locations. Plus, a journey back in time to look at some of the best spaceship designs of the past five decades. Guest star Michelle Collins discusses her role as the ship's captain, and how she felt performing stunts on her very first day on set.

Behind-the-scenes look at the making of Doctor Who. There's a trip to Manhattan to find out how to recreate 1930s New York in the heart of south Wales. The producer and director of episodes four and five visit the New York locations they plan to reproduce and the visual effects supervisor shows what they need to make Manhattan in Cardiff.

With the Family of Blood breathing down the neck of the Doctor's alter ego, time is running out for John Smith. There's a glimpse of a life more ordinary (for the Doctor) as well as a vision of the dark future ahead. The complexities of filming the episode are revealed, as well as the logistics behind the explosive ending. Features interviews with head writer Russell T Davies and Freema Aygeman on one of her toughest assignments yet.

Behind-the-scenes look at the making of Doctor Who. David Tennant directs his very own edition, given complete control to film his personal account of the making of Doctor Who and to take a nostalgic voyage of discovery to find out the secret behind the programme's success.

Behind-the-scenes look at the making of Doctor Who. After being left alone by the Doctor and Rose in series one, Captain Jack Harkness returns and there's an interview with the actor who plays him, John Barrowman.

Behind-the-scenes look at the making of Doctor Who. It's back to earth with a bump for the Doctor and his companions as they come face to face with the infamous Mr Saxon, brought to life by actor John Simm. The team use a number of locations to bring his story to life and Simm discusses how he prepared for the role.

Behind-the-scenes look at the making of Doctor Who. Two enemies square up for a battle of valiant proportions in the series finale, and there are interviews with David Tennant, John Simm, Freema Agyeman, Russell T Davies, Julie Gardner and Phil Collinson.