Jimmy Carr hosts as Sean Lock and Joe Wilkinson take on Jon Richardson and Kiri Pritchard-McLean. The Brett Domino Trio join Susie Dent in Dictionary Corner.

Jimmy Carr hosts as Roisin Conaty and Kiri Pritchard-McLean take on Jon Richardson and Rob Beckett. Comedian Huge Davies is in Dictionary Corner. Regular Countdown mathematician Rachel Riley and lexicographer Susie Dent are on hand to adjudicate