Dirk Gently's Holistic Detective Agency: A BBC Full-Cast Radio Drama (BBC Audio)
by Douglas Adams
AudioGO Ltd.; Published: 2010-07-13; Audio CD; Book
Best price: $18.57
Price in other shops: $29.95

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Dirk Gently: The Long Dark Tea-Time of the Soul: A BBC Radio Full-Cast Dramatization
by Douglas Adams
AudioGO Ltd.; Published: 2009-09-08; Audio CD; Book
Best price: $18.83
Price in other shops: $29.95

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The Hitchhiker's Guide to the Galaxy
Release date: 2011-01-01; Amazon Instant Video; Movie
Best price: $1.99

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The Lord of the Rings (BBC Dramatization, Consumer Edition)
by J. R. R. Tolkien
Lord of the Rings; BBC Audiobooks America; Published: 2008-08-19; Audio CD; Book
Best price: $26.45
Price in other shops: $49.95

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The Hitchhiker's Guide to the Galaxy: Quandary Phase
by BBC Radio Cast, Douglas Adams
BBC Audiobooks America; Published: 2005-10-25; Audio CD; Book
Best price: $15.02
Price in other shops: $24.95

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The Hitchhiker's Guide to the Galaxy: Quintessential Phase (Full-Cast Dramatization)
by Douglas Adams
BBC Audiobooks; Published: 2007-10-12; Audio CD; Book
Best price: $11.00
Price in other shops: $19.95

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The Hitchhiker's Guide to the Galaxy: Secondary Phase (Original BBC Radio Series)
by Douglas Adams
BBC Audiobooks America; Published: 2009-01-20; Audio CD; Book
Best price: $14.15
Price in other shops: $24.95

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The Ultimate Hitchhiker's Guide to the Galaxy
by Douglas Adams
Del Rey; Published: 2002-04-30; Paperback; Book
Best price: $11.99
Price in other shops: $20.00

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The Hitchhiker's Guide to the Galaxy
WEA; Release date: 2005-10-04; DVD
Best price: $10.49
Price in other shops: $19.98