March 1978 saw the first ever transmission of Douglas Adams' The Hitchhiker's Guide to the Galaxy on BBC Radio 4; the beginning of a cult phenomenon.March 2020 marks the 42nd anniversary of that first transmission - 42 being the answer, of course, to the Ultimate Question of Life, the Universe, and Everything. To mark the occasion, Pan Macmillan are bringing back into print The Hitchhiker's Guide to the Galaxy: The Original Radio Scripts with a brand-new introduction from Simon Jones.The collect...