A review of the week's television presented by Ludovic Kennedy The programmes: The Omnibus (BBC1) profile of Stevie Wonder - the man, the music and his politics; the South Bank Show (LWT) in which Melvyn Bragg interviewed novelist Martin Amis and the actor Robert Redford, who has just directed his first feature film, Ordinary People; and the Playhouse production, Unity (BBC2) by John Mortimer, based on the biography of Unity Mitford by David Pryce-Jones. The critics: Rachel Billington , novelist and playwright, Valentine Cunningham, tutor of English at Oxford and Times Literary Supplement critic and Robin Denselow, Newsnight reporter and rock critic of The Guardian. Also an interview with Shaun Sutton who has been the Head of Drama at BBC television for the last 12 years and is soon leaving that job to produce the BBC Shakespeare series.