15:00Snooker: World Championship2011Day 8, Part 1BBC Two Duration: 1 hour, 30 minutes Sat 23rd Apr 2011, 15:00 on BBC One North East & CumbriaHazel Irvine presents action from the second round as players vie for places in the quarter-finals. Matches are the best-of-25 frames and played over three sessions.ContributorsPresenter:Hazel IrvineParticipant:Steve DavisParticipant:John ParrottParticipant:Ken DohertyCommentator:Neal FouldsCommentator:Terry GriffithsCommentator:Dennis TaylorCommentator:Willie ThorneCommentator:John VirgoGenresSportSnookerBrandSnooker: World ChampionshipSeriesSnooker: World Championship: 2011 Source: BBC Online