A topical arts magazine Introduced by Melvyn Bragg S.O.S. The first TV appearance of a newly formed trio which combines three of the finest British jazz saxophonists - JOHN SURMAN (baritone), MIKE OSBOURNE (alto) and ALAN SKIDMORE (tenor). IAN CARR , author of the book Music Outside, talks about the state of British jazz: ' a perpetual Cinderella of the arts.' The Landscape of Britain EDWIN MULLINS reviews the current exhibition at the Tate Gallery: a survey of the art of landscape painting 1750-1850, ranging from the figures of Turner and Constable to lesser-known artists. W.A.G. The Writers' Action Group aims to achieve a trade union of writers whose livelihood, they claim, is severely curtailed by the public library system. BRIGID BROPHY, W.A.G.'s founder, will discuss the scheme, and their immediate plans to ' storm Parliament.' Producers TONY CASH, KARL FRANCIS Studio director BEN REA Assistant editor TONY STAVEACRE Editor BILL MORTON