World Darts Extra2010Day 4BBC Two Duration: 2 hoursFirst broadcast: Wed 6th Jan 2010, 00:10 on BBC Two ScotlandLatest broadcast: Wed 6th Jan 2010, 00:10 on BBC Two EnglandRob Walker introduces action from day four, where second round matches are underway.GenresSportDartsBrandWorld Darts ExtraSeriesWorld Darts Extra: 2010 Source: BBC Online