Snooker: World Championship2013Day 8, Part 1BBC Sport Duration: 2 hoursFirst broadcast: Sat 27th Apr 2013, 10:00 on BBC Two HDLatest broadcast: Sat 27th Apr 2013, 10:00 on BBC Two WalesJason Mohammad introduces live second-round action as players vie for places in the quarter-finals.ContributorsPresenter:Jason MohammadParticipant:Steve DavisParticipant:Ken DohertyParticipant:John ParrottParticipant:Terry GriffithsParticipant:Dennis TaylorParticipant:Willie ThorneParticipant:John VirgoExecutive Producer:Alison WitkoverExecutive Producer:Graham FryGenresSportSnookerBrandSnooker: World ChampionshipSeriesSnooker: World Championship: 2013 Source: BBC Online