Sue Lawley interviewed Stephen Hawkings on Christmas Day 1992 for the BBC radio show Desert Island Discs. Desert Island Discs is a long-running BBC Radio 4 programme. It was first broadcast on January 29, 1942 and is said by the Guinness Book of Records to be the longest-running music programme in the history of radio. Guests are invited to imagine themselves as castaways on a desert island, and asked to choose the eight pieces of music they would take with them; discussion of their choices permits a review of their life. Aside from the music they select, they are also permitted to take one book, excluding the Bible or other religious work and the complete works of Shakespeare, which are deemed to be already present on the island (probably to force castaways to make more interesting choices). They also choose one luxury item which must be inanimate and of no survival value, though "endless supplies of champagne" seem to be allowed. Stephen Hawking choose the following