Ben Shephard invites Newsnight presenter Kirsty Wark, actor/comedian Miles Jupp and TV personality Kerry Katona to take part in a special edition of the quiz show. Contestants answer questions to win turns on an arcade-style machine. Dropping tokens down a choice of four chutes, they hope to knock piles of them off a moving shelf - and the more they collect, the better their chances of collecting the £20,000 prize for their selected charity.