4. Sarah Millican, Chris Ramsey, Abandoman

Jimmy Carr hosts the iconic words and numbers quiz, as 8 Out of 10 Cats team captains Sean Lock and Jon Richardson are joined by celebrity guests Sarah Millican and Chris Ramsey. Countdown regular Susie Dent shares Dictionary Corner with Abandoman, while the country's favourite boffin Rachel Riley dispenses the letters and numbers with a little help from comedian Joe Wilkinson.