Kim Newman wrote Time and Relative. He also contributed to a feature on Dalek history for the Genesis of the Daleks DVD. A decade later extracts form the same interview along with previously unused material was used for the documentary on the newly animated The Power of the Daleks DVD.
In 1995, before his Doctor Who involvement, Newman published the novel The Bloody Red Baron, which included an appearance by Lady Jennifer Buckingham, a character from The War Games.
He is also an occasional presence on DVD documentaries and series 1 episodes of Doctor Who Confidential.