He moved to the UK around 1950, where he joined the staff of
BBC Television. While working as a staff writer for the BBC in 1963 and living in
Herne Bay, Kent, he became involved in the early development of the
science-fiction series Doctor Who. He liaised closely with the series' first story editor,
David Whitaker, on establishing the format and characters of the show, which had been initiated by various BBC drama executives before being handed on to the new production team. It is believed to have been Coburn's idea for
the Doctor's travelling companion,
Susan, to be his granddaughter, as he was disturbed by the possible sexual connotations of an old man travelling with an unrelated teenager. Coburn wrote four full serials for the programme,
An Unearthly Child,
The Robots (also known as
The Masters of Luxor) and two other unnamed scripts. Only
An Unearthly Child was produced and it was the first
Doctor Who serial to be made, despite both Coburn and the production team's misgivings about its prehistoric settings.
The Robots was continually delayed and put back in production order, and then finally rejected – following this, Coburn severed his links with the show. The story would see the travellers land on thirteenth-century Earth, then by the end of the month, it changed to a planet. The production team were unhappy with
The Robots. So, on 23 September, they decided to switch productions with the intended fifth serial,
The Daleks. Coburn, however, turned the project and changed the story to
The Masters of Luxor. The story would see the Doctor, Ian, Barbara, and Susan landed the TARDIS on the moons of Luxor, after they find a strange light signal. They discover that the moon is dominated by robots led by "The Perfect One". "The Perfect One" was experimenting on people to discover the secret of life – which his servants kidnap Barbara and Susan as test subjects. Meanwhile, the Doctor and Ian escape into the wilderness and awaken Tabon, the creator of "The Perfect One". Tabon then confronts "The Perfect One" about making experimentations, causing the robots to get out of control. The robots kill Tabon, and destroy "The Perfect One". Barbara and Susan are then freed and rescued by the Doctor and Ian, and then head back to the time machine. However, the story was dropped due to schedule difficulties. In August 1992,
Titan Books released
The Masters of Luxor as a Doctor Who Script Book, edited by John McElroy. In August 2012,
Big Finish Productions released
an audio adaptation of The Masters of Luxor by
Nigel Robinson. ==Later work==