George Clarke’s Amazing Spaces

(Channel 4, 8pm)

George continues to explore the world of inspirational small builds, meeting a man who amazes the architect with his ambitious plan to create a barn out of discarded windows and old driftwood. He also drops in on a novice builder creating a cosy retirement home in a minivan for her and her pet cat.

Pooch Perfect

(BBC One, 8pm)

The last four dog groomers battling it out for a place in the quarter-finals are challenged to achieve the perfect pom-pom ball shape on a Pomeranian, the toy dog breed descended from larger Spitz-type animals. And to make the task even harder, they are only allowed to use their scissors. The contestants then work their magic on a family of poodles and a Yorkshire terrier before they are paraded in front of their owners and judges Verity Hardcastle and Colin Taylor.

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Death in Paradise

(BBC One, 9pm)

Much like his predecessors on this light-hearted drama series, Neville is finding it hard adjusting to Saint Marie island life. And tonight, thanks to a rogue sandfly bite during a game of beach volleyball, the detective ends up in hospital. His time on the ward takes a shocking turn when nurse Dena Johnson takes her own life. Neville’s policing instincts take over as he starts to build a case around her death. Do his fellow patients know more than they are letting on, and why exactly are Dena’s brother and boss so secretive?

The Chasers Road Trip: Trains, Brains, and Automobiles

(ITV, 9pm)

Chasers Anne Hegerty, Mark Labbett, and Shaun Wallace are now TV stars in their own right. The trio have landed their own spin-off which sees them jet off around the world to test their brains like never before. In this week’s second show, the chasers journey back to the UK and go head-to-head with child geniuses in order to weigh up to what degree intelligence is innate or can be developed.