08:30Olympic Canoeing2008Men's and Women's Semi-finalsBBC Sport Duration: 1 hour, 15 minutes Wed 20th Aug 2008, 08:30 on Red Button (Freeview)Live coverage of the semi-finals in the men's K1, K2, K4, C1 and C2 1000m, and the women's K4 500m.GenresSportOlympicsSportCanoeingBrandOlympic CanoeingSeriesOlympic Canoeing: 2008 Source: BBC Online