Plot: Featuring Britain's tallest man and woman Neil Fingleton and Jessica Pardoe, 400m hurdles British record holder Sally Gunnell and 100m British record holder Linford Christie, Kellie Bright and Tim Bentinck from The Archers, the world's longest-running soap opera, and Andy Akinwolere and Janet Ellis, former presenters of Blue Peter, the world's longest-running children's television programme.