15:00Snooker: World Championship2009Day 15: Semi-Finals Part 2BBC Two Duration: 1 hour, 30 minutes Sat 2nd May 2009, 15:00 on BBC One OxfordshireRishi Persad, Steve Davis and John Parrott present live coverage from Sheffield as the semi-finals reach their crucial stages.ContributorsPresenter:Rishi PersadPresenter:Steve DavisPresenter:John ParrottCommentator:Dennis TaylorCommentator:Willie ThorneCommentator:John VirgoCommentator:Ken DohertyGenresSportSnookerBrandSnooker: World ChampionshipSeriesSnooker: World Championship: 2009 Source: BBC Online