LONDON.- Is British art a British fantasy? Does the art of the past say anything about the world of today? Should the British public have a say in what goes into museums? These are among the many questions at the heart of The Great British Art Debate, a four-year programme intended to stimulate debate about the impact of British art on the publics perception of Britishness. A Constable of the Suffolk countryside, a Richard Billingham of the Black Country, a John Martin landscape: how do these and the thousands of works from our national collections impact on the publics perception of Britishness? The Great British Art Debate opens its first major exhibition as part of the project, “Watercolour in Britain: Travelling with Colour”, at Norwich Castle Museum & Art Gallery on 30 January, marking the first in a series of four themed exhibitions which will roll out between now and 2012 at Tate Britain, Norwich Castle Museum & Art Gallery, The Laing Art Gallery in Newcastle