23:05Darts: World Championships - Highlights2011Day 7BBC Two Duration: 55 minutes Fri 7th Jan 2011, 23:05 on BBC Two EnglandRob Walker introduces highlights from the remaining quarter-final men's matches.ContributorsPresenter:Rob WalkerCommentator:Tony GreenCommentator:David CroftCommentator:Vassos AlexanderGenresSportDartsBrandDarts: World Championships - HighlightsSeriesDarts: World Championships - Highlights: 2011 Source: BBC Online