Katty Kay in Washington and Christian Fraser in London report on the events that are shaping the world.

Kate Humble and Gareth Wyn Jones present highlights from the final day of the Royal Welsh Show. They meet prize-chasing creatures, from shire horses to giant snails. Show more

Simon Reeve begins a massive Australian adventure. Starting in the continent's 'red centre', he travels from the south to the western city of Perth via the Indian Pacific railway. Show more

Hannah Fry takes a look at the science of size. Here, she asks if things could be smaller, including the Earth, living things and the Sun. Show more

Professor Brian Cox guides viewers through 350 years of British science. He grapples with science's darker side, asking why it often gets such a bad press. Show more

Documentary showing Britain's changing look over the course of a year. Spring arrives, and with it comes the start of an epic race for life where timing is everything. Show more

Canadian crime drama series. Cardinal and Delorme know they have their killer - now it's a mad dash to find him before he murders Keith. Cardinal meets his daughter Kelly. Show more

Canadian crime drama series. Cardinal wonders if he and Delorme are still missing a piece of the puzzle. He digs deeper and goes to the pharmacy where Edie works. Show more

Simon Reeve begins a massive Australian adventure. Starting in the continent's 'red centre', he travels from the south to the western city of Perth via the Indian Pacific railway. Show more

Hannah Fry takes a look at the science of size. Here, she asks if things could be smaller, including the Earth, living things and the Sun. Show more