13:00Snooker: World Championship2017Episode 143: Day 14, Semi-Finals, Afternoon SessionBBC Two Duration: 5 hours, 5 minutes Fri 28th Apr 2017, 13:00 on BBC Two HDHazel Irvine introduces semi-final action, with eight frames to be played on Friday afternoon.GenresSportSnookerBrandSnooker: World ChampionshipSeriesSnooker: World Championship: 2017 Source: BBC Online