With Dara Ó Briain holding a very slender lead in the race to claim television's most prestigious prize, this penultimate episode finds John Kearns blunting the business end of a sausage, Fern Brady struggling with a raspberry and Munya Chawawa unwittingly forcing Sarah Millican into finding a novel use for a ping-pong ball. Greg Davies hosts, ably assisted by Alex Horne.