Kaldor City is a series of audio plays using elements from the British TV series Doctor Who and Blake's 7. Many of the elements borrowed from these series for use in Kaldor City were originated by Chris Boucher, who wrote for Doctor Who and was script editor for all four seasons of Blake's 7. The series, produced by Magic Bullet Productions, was released on CD beginning in 2001. Within the stories, Kaldor City is a major humanoid city of the future "on a corrupt world governed by an all-powerful Company, where the rich scheme in mansions filled with robot slaves, the poor scrabble for survival in the Sewerpits, the Security forces are out of control and terrorism is a daily fact of life". It was first mentioned in the 1977 Doctor Who serial The Robots of Death as the home base of a "storm mine" touring the desert searching for and mining precious minerals from within the sands, with the crew working on commission for the Company. Boucher reused Kaldor City in his 1999 novel Corpse Marker, part of the Doctor Who Past Doctor Adventures line. Background The society shown in The Robots of Death is one where higher class "founding families" (presumably a reference to the families that founded the colony planet) have hit financial difficulties and are forced to work with (and sometimes subordinate to) citizens who have achieved their power, influence and wealth through their own hard work and scheming. This has led to a certain amount of resentment between the new and old money, mirroring the decline in the financial power of the gentry in England. The society is also highly reliant on the use of robots at all levels, with three class of robot in use: Dum robots are for menial work, and are unable to speak; Voc robots are the next level up, and can speak, and have limited reasoning capabilities; Super-Voc robots are the most advanced, and can be used to monitor complex activities including the day-to-day activities of other, lower class robots. Each robot is given a designation based on its class (for example D-84 is a Dum class robot and SV-7 is a Super-Voc) and is programmed with a variant on Asimov's Three Laws of Robotics. The society is not entirely comfortable with the use of robots; the machines' humanoid design but complete lack of emotion and body language has given