Richard Hammond's Crazy Contraptions

Two teams compete to build ingenious machines out of everyday objects that allow Richard to straighten his duvet and 'make the bed' without leaving his bath tub. The teams must complete the task in the most complicated manner possible.

Three stars of TikTok take on three civil engineering students from the University of Southampton, as they attempt to create ingenious chain reaction machines that allow Richard to boil his kettle while sitting on the lavatory.

Three amateur pilots take on a team of stunt fans in a challenge to build a machine that will allow Richard to feed his dog without leaving his desk. With a place in the semi-finals at stake, the rival teams let their imaginations run wild.

A team of physics-obsessed students from Leeds take on three Spanish-born brothers, in a bid to build a machine that allows Richard to water the plants without getting up from watching the TV.

The Fieldhouse Brothers, from Somerset, take on the Bueno Brothers, originally from Spain, in a closely fought contest to build jaw-dropping chain reaction machines that will allow Richard to dust his ornaments without leaving bed.

The two winners from the heats go head-to-head for a place in the final. The challenge this time is to create an ingenious chain reaction machine that allows Richard to cook sausages in the kitchen, without leaving his desk in the study.