The ingenious move to mix these two shows together came a few years ago when Jimmy Carr did it to celebrate Channel 4's 30th birthday. It's taken on a life of its own since then though and has become a staple on the channel's schedule. Tonight sees Jon Richardson and Cariad Lloyd taking on guest captain Alan Carr and Kevin Bridges while Elis James and John Robins join Susie Dent in Dictionary Corner, and Rachel Riley looks after the numbers and letters.