16:00Scott MillsNick Grimshaw sits in for ScottBBC Radio 1 Duration: 1 hour, 45 minutes Thu 22nd Sep 2011, 16:00 on BBC Radio 1 N. IrelandGrimmy sits in for Scott Mills to entertain the nation!GenresMusicPop & ChartExperimental & NewEntertainmentBrandScott Mills Source: BBC Online