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In page The Day of the Triffids:

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  • A second version of Cooper's adaptation, for BBC Radio 4, was first broadcast between 20 June and 25 July 1968. It was produced by John Powell, with music by David Cain of the BBC Radiophonic Workshop.[3][4]
  • It was adapted in Germany in 1968 by Westdeutscher Rundfunk (WDR) Köln (Cologne), translated by Hein Bruehl.[5] Most recently, it was re-broadcast as a four-episode series on WDR5 in January 2008.[citation needed]
  • It was adapted in Norway in 1969 by Norsk Rikskringkasting (NRK), translated by Knut Johansen, and most recently re-broadcast as a six-episode series on NRK in September and October 2012. The Norwegian version is also available on CD and iTunes.[6]