Jimmy Carr hosts the comedy statistics quiz, with team captains Sean Lock and Jon Richardson and guests Melanie C, Tess Daly, Joe Wilkinson and Andrew Maxwell.
Al meets up with Germany's self-appointed comedy ambassador to the UK, Henning Wehn, to pick through the bad blood between the two nations.
Al meets up with Welsh funnyman Elis James to rummage through the reasons behind England and Wales' animosity.
Al catches up with Fred MacAulay as they unravel the deep-seated hostility between England and neighbours to the north Scotland.
Al meets up with Andrew Maxwell to explore the fierce animosity between the English and their Irish cousins.