<P> The Hitchhiker's Guide to the Galaxy (sometimes referred to as HG2G, HHGTTG or H2G2) is a comedy science fiction series created by Douglas Adams . Originally a radio comedy broadcast on BBC Radio 4 in 1978, it was later adapted to other formats, including stage shows, novels, comic books, a 1981 TV series, a 1984 video game, and 2005 feature film . </P> <P> A prominent series in British popular culture, The Hitchhiker's Guide to the Galaxy has become an international multi-media phenomenon; the novels are the most widely distributed, having been translated into more than 30 languages by 2005 . In 2017, BBC Radio 4 announced a 40th - anniversary celebration with Dirk Maggs, one of the original producers, in charge . This sixth series of the sci - fi spoof has been based on Eoin Colfer's book And Another Thing, with additional unpublished material by Douglas Adams . The first of six new episodes was broadcast on 8 March 2018 . </P> <P> The broad narrative of Hitchhiker follows the misadventures of the last surviving man, Arthur Dent, following the demolition of the planet Earth by a Vogon constructor fleet to make way for a hyperspace bypass . Dent is rescued from Earth's destruction by Ford Prefect, 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 that 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 . </P> <P> 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 all versions, the series follows the adventures of Arthur Dent, a hapless Englishman, following the destruction of the Earth by the Vogons, a race of unpleasant and bureaucratic aliens, to make way for an intergalactic bypass . Dent's adventures intersect with several other characters: Ford Prefect (who named himself after the Ford Prefect car to blend in with what was assumed to be the dominant life form, automobiles), an alien from a small planet somewhere in the vicinity of Betelgeuse and a researcher for the eponymous guidebook, who rescues Dent from Earth's destruction; Zaphod Beeblebrox, Ford's eccentric semi-cousin and the Galactic President; the depressed robot Marvin the Paranoid Android; and Trillian, formerly known as Tricia McMillan, a woman Arthur once met at a party in Islington and the only other human survivor of Earth's destruction thanks to Beeblebrox' intervention . </P>

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