The Hitchhiker's Guide to the Galaxy (novel) productions in the late 1970s. Davies himself appears as Prosser. This edition is out of print – Adams bought up many remainder copies and sold them, autographed, on his website. There have been three audiobook recordings of the novel. The first was an abridged edition (), recorded in the mid-1980s by Stephen Moore, best known for playing the voice of Marvin the Paranoid Android in the radio series, LP adaptations and in the TV series. In 1990, Adams himself recorded an unabridged edition for Dove Audiobooks (), later re-released by New Millennium Audio () in the United States and available
The Hitchhiker's Guide to the Galaxy (novel) from BBC Audiobooks in the United Kingdom. Also by arrangement with Dove, ISIS Publishing Ltd produced a numbered exclusive edition signed by Douglas Adams () in 1994. To tie-in with the 2005 film, actor Stephen Fry, the film's voice of the Guide, recorded a second unabridged edition (). The popularity of the radio series gave rise to a six-episode television series, directed and produced by Alan J. W. Bell, which first aired on BBC 2 in January and February 1981. It employed many of the actors from the radio series and was based mainly on the radio versions of Fits