P120 ORACLE 120 Sun17 Oct ITV 2211:00      SUNDAY 10.00pm "LAURENCE OLIVIER - A LIFE" The first of two 90-minute film specials entitled "Laurence Olivier - A Life" (10.00pm) concerns the early career of Britain's greatest actor. The man himself takes us from his childhood spent in the shadow of the church, through his early successes on stage and screen to his debut as a film director with Henry V in 1944. The programme's editor is Melvyn Bragg, producer of documentaries on Debussy and Tennessee Williams. His extensive interviews with Olivier are central to the programmes, and few will want to miss part two when it's shown next Sunday. 