Over the years there have been numerous commercial audio readings of the various
Doctor Who books, beginning with
State of Decay from
Pickwick in the early 1980s, but it is only in recent years that the idea of producing completely new works for CD has taken off.
Although
BBC Worldwide had dabbled with the idea in the late-1990s, when two of their three audio releases based on
BBC Books' series of
Doctor Who anthologies had included an original story, a regular series wasn't to start until January 2007, when
Big Finish Productions launched their
Companion Chronicles series. The company had been producing full-cast
Doctor Who audio dramas featuring Doctors Five to Eight since 1999, and the new range allowed them to create stories featuring the adventures of Doctors One to Four, with each CD being read by the actors and actresses who originally played the television companions featured in each of the stories.
BBC Audiobooks finally got in on the act in May 2008 with the release of
Pest Control, the first in an ongoing series of original
Tenth Doctor stories.