Fry's English Delight, Series 5

A fifth series from BBC Radio 4, in which Stephen Fry examines, with the help of experts, the highways and byways of the English language. In these four episodes he tells 'The Story of X': a letter holy and profane, sexy and chaste; discusses intonation, the "song" of English, and how cadence affects meaning; muses on the art and craft of conversation - and whether true conversation can happen on TV and radio - and ponders the meaning of meaning and the gap between brain and mouth that means language can never truly represent thought. In addition, he tells us why blue as a colour is a newish invention.