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Collins looks back at the successful television series Grange Hill and particular its anti-drugs campaign in 1986 which led to the production of the pop record "Just Say No". Justin Lee Collins tries to track down the original actors in the show at the time and reunite them for a one-off performance of the song . Justin has a problem in that he has just 10 days to trace them, but many have abandoned their acting careers altogether and are reluctant to relive their brush with adolescent stardom . However, he did manage to track down and interview: * Alison Bettles - Fay Lucas * George Christopher - Ziggy Greaves * Mmoloki Chrystie - Kevin Baylon * Lee MacDonald - Zammo Maguire * Erkan Mustafa - Roland Browning Only Bettles, MacDonald, Christopher and Mustafa arrived to sing their 80s hit at the Hammersmith Palais, but they were joined on stage by other former cast members who were not interviewed, among them was Mark Savage who played 'Gripper' Stebson. Despite the title, Grange Hill was still airing at the time the show aired. On September 15, 2008 Grange Hill finally came to an end after 30 years.