16:00The Official Chart on Radio 1 with Jack Saunders25/07/2010BBC Radio 1 Duration: 3 hours Sun 25th Jul 2010, 16:00 on BBC Radio 1 N. IrelandReggie Yates counts down the latest official Top 40, plus he catches up with Basshunter and Swedish House Mafia have a go at Chart Trivia.GenresMusicPop & ChartEntertainmentBrandThe Official Chart on Radio 1 with Jack Saunders Source: BBC Online