Sir Terry Pratchett and Rod Brown, Managing Director of Prime Focus Productions, have announced an agreement for the unprecedented and exclusive worldwide television rights to create brand new storylines for the iconic characters of Pratchett's phenomenally successful Discworld series.

PrimefocusTerry's universal success has seen him create one of the leading fantasy fiction franchises of all time, with 70 million worldwide sales of his 38-book Discworld titles.

This will rise to 39 following another book to be published in October 2011. While there have been three successful mini-series adaptations of his Discworld books made for television in the UK, this is the first time Pratchett has granted a production company the international rights to his characters and their world. The agreement will see Prime Focus Productions create a series of new stories exclusively for a television audience.

The main focus of the series will be the bustling, highly mercantile, largely untrustworthy and vibrant city of Ankh Morpork. It will follow the day-to-day activities of the men, women, trolls, dwarves, vampires and several other species who daily pound its ancient cobbles.

This will of course also include Igor in the forensics department. Terry commonly refers to the City Watch police force series as "the jewels in his Discworld Crown". These richly developed and highly compelling characters will feature in a 'crime of the week' episodic storyline. As each weekly adventure unfolds, viewers will be taken on a ride through Pratchett's genius imagination, with the author overseeing the creation of the series. In this world, wild and exciting encounters with werewolves, dragons, dwarfs, trolls, golems and the classic heroes and villains are an everyday occurrence many of whom even make outstanding crime fighters.

Rod Brown, Managing Director of Prime Focus Productions, said: "I believe the globally successful Discworld franchise will readily translate to the small screen in the form of a high-end, mass appeal weekly drama series, giving the audience the anticipation and excitement of brand new Discworld stories every week through the medium of television, rather than books. It's a huge responsibility to get this right for Terry, his legions of Discworld fans and the new followers that we'll attract along the way. I believe they'll be in for a treat with a high calibre writing team already attached, including Monty Python's Terry Jones and Gavin Scott (Small Soldiers, The Borrowers). We've already spoken to a number of international broadcasters who've shown early interest and we hope to move forward very quickly to bring this exciting project to fruition."

Sir Terry Pratchett said of the agreement: "I've very excited and incredibly happy about this because Rod was co-head of the team that produced the very successful Sky One adaptations. "