Melvyn Bragg concludes his exploration of the history of the spoken language of Britain.
British English is only one local variety of the language which has become the lingua franca of the world. How has the American influence worldwide affected the way English works and is developing in its sound, spelling and structure? Professor Steven Pinker joins novelist and actor Stephen Fry to debate the current and future state of the language.
(Repeated Tuesday 1.30pm)