The Hitchhiker's Guide to the Galaxy a human-like alien writer for the eccentric, electronic travel guide "The Hitchhiker's Guide to the Galaxy", by hitchhiking onto a passing Vogon spacecraft. Following his rescue, Dent explores the galaxy with Prefect and encounters Trillian, another human who had been taken from Earth prior to its destruction by the President of the Galaxy, the two-headed Zaphod Beeblebrox, and the depressed Marvin, the Paranoid Android. Certain narrative details were changed between the various adaptations. The various versions follow the same basic plot but they are in many places mutually contradictory, as Adams rewrote the story substantially for each new adaptation. Throughout
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