Matt Baker and Gabby Logan are joined by Graeme Garden, Tim Brooke-Taylor, Barry Cryer and Jeremy Hardy from Radio 4's 'I'm Sorry I Haven't a Clue'. Phil Tufnell puts the nation's honesty to the test, while Arthur Smith goes in search of the man who created darts. Or did he? Tony Hart's daughter Carolyn recalls growing up with her famous artist dad, while there's a special tribute from his famous creation Morph. And there's a performance from the world tap dancing champions.