Only Connect: Season 18, Episode 24

18 - 24: Cunning Planners v Crustaceans

Victoria Coren Mitchell hosts the quiz where knowledge only gets you so far – logic and lateral thinking are the vital extra ingredients.

Six contestants in search of a semi-final place must deal with a series of tricky questions. For example, what connects the following: For the most part, Hypersensitive immune response, In a manner befitting royalty, and Building for art display?