BBC One London

To mark World Rivers Day, Matt Baker and Margherita Taylor explore the River Trent and the land that surrounds it.

At Souter Lighthouse in Tyne and Wear, the roadshow discovers some remarkable treasures, including a flying helmet, a letter signed by Napoleon and a portrait by David Hockney.

Aria makes a risky play for Kishan Law. Later, a chaotic awards ceremony leaves her stunned to uncover the true nature of Dhruv and Zoya's hidden relationship.

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Now a rising young lawyer, Elle Woods is about to become a partner at her firm, she and Emmett are still in love, and her hair is still super-healthy. Then she finds out her beloved Bruiser's canine relatives are being used as cosmetic test subjects, so she heads to DC to...