The Hitchhiker's Guide to the Galaxy States and Canada with Hannibal Records and Simon and Schuster were later negotiated by Douglas Adams and his agent, Ed Victor, after gaining full rights to the recordings from Original Records, which went bankrupt. There have been three audiobook recordings of the novel. The first was an abridged edition (), recorded in the mid-1980s for the EMI label Music For Pleasure by Stephen Moore, best known for playing the voice of Marvin the Paranoid Android in the radio series and in the TV series. In 1990, Adams himself recorded an unabridged edition for Dove Audiobooks (), later re-released by New
The Hitchhiker's Guide to the Galaxy (radio series) discussed the new series, directed and co-produced the radio adaptation as well as adaptations of the remaining "Hitchhiker's Guide" novels "So Long, and Thanks for All the Fish" and "Mostly Harmless". These became the third, fourth and fifth radio series, transmitted in 2004 and 2005. A sixth series, adapting Eoin Colfer's sixth part in the "trilogy", "And Another Thing..." was broadcast in March 2018. Douglas Adams had contributed comedy sketches for BBC radio programmes produced by Simon Brett (including "The Burkiss Way" and "Week Ending"), and was asked to pitch a radio sitcom in February 1977. Adams initially pitched a