Clive Myrie presents another semi-final of the classic quiz where contenders return to the black chair under the glare of the spotlight and the ticking clock with a place in the grand final on the line. The specialist subjects are Jeff Buckley, the managerial career of Rafael Benítez, Andy Warhol and the classic Routemaster bus.

The quarter-finals continue with another elimination match. Both teams lost their first quarter-final and can't afford to lose again. Amol Rajan asks the questions.

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The semi-finals begin with the remaining eight chefs challenged to deliver a dish that uses all the chosen ingredients, with absolutely nothing wasted.

Bruce considers a new chapter in his career; Serena uses a baby to get out of work; Matt helps Ron log onto his computer. 

As the competition continues at Aulani, A Disney Resort & Spa in Ko Olina, Hawaiʻi, Brad Paisley and Keke Palmer mentor the Top 20 hopefuls. Keke also serves as a guest judge, while Iam Tongi and Thunderstorm Artis perform.

As relentless storms push survivalists to the edge, families at HQ fight for critical resources.

Gemma throws Dave an unforgettable murder mystery birthday party. Meanwhile, Malcolm uses the celebration to introduce Mercedes to his family.