In this BBC iPlayer exclusive, renowned poet and writer, Benjamin Zephaniah gets a sneak preview and takes us on a personal tour of the new blockbuster exhibition at Tate Britain showcasing one of the great names in British Art.

J.M.W.Turner was celebrated in his day, but towards the end of his life, his style grew more radical and daring, causing some critics to think Turner had gone mad. This is a rare chance to see the late great works of one of Britain's most visionary artists, together in one exhibition. Show less