Natural World visits the Arizona desert, where a new honey ant queen wages an intense battle for survival as she attempts to build and defend her empire. Show more

Benny launches an attack on the Nekross ship - a plan which has terrifying consequences for both wizards and aliens alike.

Time is running out for the Nekross. But if helping Benny means saving his enemy, what choice will Tom make?

Sue Barker presents coverage of the 2013 World Figure Skating Championships from London, Ontario in Canada. Featuring the pairs, men's free, women's free and the ice dance. Show more

David Attenborough's breathtaking journey through Africa. In the Sahara Desert, huge zebras battle for resources, camels seek water, and tiny swallows search for an oasis. Show more

Film-maker David Malone explores the science behind metamorphosis, the amazing transformation of one creature into a totally different being. How does it happen and why? Show more

Jeremy Clarkson, Richard Hammond and James May star in a compilation of their finest moments from Series 19, featuring challenges, stunts and a small amount of bickering. Show more

Dairy farmer Richard Gibson swaps the damp surroundings of Devon to live and work with Samburu tribesmen in the parched and desolate mountains of northern Kenya. Show more

Zombie drama series. Partially Deceased Syndrome sufferer Kieren Walker returns to his home village of Roarton, but receives a decidedly mixed reception upon his arrival. Show more

Highlights from Red Nose Day 2013, this year celebrating 25 years on our screens, with contributions from the best comedy and entertainment talent in the UK.

The best of the action and reaction from the final weekend. Ireland play Italy, reigning champions Wales take on England, and Scotland face France in Paris. Show more

Phill Jupitus and Marcus Brigstocke head to Bolivia for a high-altitude road trip taking in the so-called Road of Death before findng themselves deep in bandit country. Show more