Snooker: World Championship2012Day 11, Part 3BBC Sport Duration: 1 hourFirst broadcast: Tue 1st May 2012, 19:00 on BBC HDLatest broadcast: Tue 1st May 2012, 19:30 on BBC Two ScotlandLive coverage from the evening's quarter-finals, where the difference between winning and losing is almost 28,000 pounds.ContributorsPresenter:Hazel IrvinePresenter:Rishi PersadParticipant:Steve DavisParticipant:Ken DohertyParticipant:John ParrottParticipant:Stephen HendryCommentator:Neal FouldsCommentator:Terry GriffithsCommentator:Dennis TaylorCommentator:Willie ThorneCommentator:John VirgoGenresSportSnookerBrandSnooker: World ChampionshipSeriesSnooker: World Championship: 2012 Source: BBC Online