BBC Two TV Guide

Deirdre O'Kane, Jay Rayner, Tessa Sanderson and Iwan Thomas test their general knowledge skills in a variety of trivia-based games

Michael Portillo's railway adventure in Uzbekistan continues in Samarkand, one of the oldest cities in Central Asia. He discovers the national passion for bread, leading him to a family bakery where he learns how to bake special, bagel-like loaves. The great conqueror, Tamerlane, made Samarkand his capital in the 14th-century, and at his tomb Michael learns of the brutality and military prowess of the man who is today Uzbekistan's national hero

Iolo Williamsheads up the Tywi river valley. His 75-mile journey begins at the coastal village of Llansteffan, where the river meets the sea under the watchful gaze of its 12th-century Norman castle. Following the river inland through the fertile lowlands, Iolo visits Bishop's Pond, by Abergwili. At Dinefwr Park near Llandeilo, Iolo heads into the parkland during the autumn for the Fallow Deer rutting season

Hannah travels from California to Japan to experience the latest age-defying techniques and examine the true meaning of life

Hannah Fry delves into the mysteries of modern technology to uncover the fascinating stories behind the everyday objects that people take for granted

As Elon Musk's businesses reach unprecedented levels of success, his public profile grows - but his behaviour comes under ever greater scrutiny. The episode starts in 2016, when a new president came to power, whose support Elon would need in order to fulfill his multi-billion dollar government contracts. His marriage to wife Talulah Riley comes to an end and they divorce for a second time, and as well as a fractured private life, the pressure on Elon across his empire becomes enormous, with cracks beginning to show at Tesla, amid the threat of bankruptcy and whistleblowers going to the press

Livestock farmer Joyce has a rare tumour in her bile duct and is undergoing a complex operation to have it removed. During the life-saving procedure, surgeons Anya Adair and Professor Steve Wigmore encounter a difficult dilemma with huge consequences. Also, surgeon Malcolm Will has taken on a rare case involving a tumour that has invaded his patient's chest wall

With the start of the tournament weeks away, final plans for the opening ceremony need to be pinned down. But its Mexican creative director has had a rethink, and his new vision doesn't include any reference to America at all, or indeed to soccer. The lead events producer may or may not be close to a having a breakdown. Also, Ian finds himself starting to think about life after football

Analysis of the day's events, with Victoria Derbyshire

The BBC's world affairs editor reflects on the week's major global news stories, talking to local experts from around the world to go behind the headlines

The stories of some of the two million British children who were not evacuated during the Second World War, staying at home in towns and cities at risk of being bombed, often to help their families or because their parents couldn't bear to send them away. This documentary features some of the last people who were witness to the reality of the Blitz, with their testimonies offering an intimate, enlightening and moving portrait of wartime Britain through children's eyes