TV Guide U&Yesterday Tuesday

The historian investigates the complex factors that shaped the dark imagination of a refined Devonshire lady, discovering family secrets and a childhood haunted by a sinister figure. Focusing on the first third of Agatha Christie's life, this episode unearths the surprising roots of her most compelling themes, the inspiration for some of her greatest creations, and the secrets that the enigmatic Christie herself kept carefully hidden from public view

Michael tracks the River Thames from east to west. Starting in Dagenham, he finishes this leg of his tour at one of London's most iconic buildings, Battersea Power Station, built during the 1930s by Giles Gilbert Scott

Michael Portillo discovers the origins of Harry Beck's map of the London Underground, learns about a shocking surrealist show in 1930s Piccadilly and explores the headquarters of Churchill's war cabinet

Michael Portillo's railway journey reaches Greater Manchester, where he celebrates new beginnings for the nation in the years after the Second World War. At Trafford General Hospital, he investigates the birth of the National Health Service. A retired physiotherapist recalls her part in the historic event of July 5, 1948. Coronation Star tells Michael about the first episode of the soap, broadcast live in 1960. And at the city's Science and Industry Museum, the presenter encounters a replica of the Baby, which was created in 1948 - the first machine in the world to run a stored program and the forerunner of all modern computers

Michael Portillo travels by tram to the former cotton town of Oldham on the edge of the Peak District. Here he visits Oldham Coliseum, the town's Victorian repertory theatre, and hears about the lifting of censorship by the Lord Chamberlain's Office in the late 1960s. He then goes hiking before a visit to Sheffield, where he attends a knife-making workshop. He ends this part of his journey admiring the striking post-war sculptures of Barbara Hepworth at the Yorkshire Sculpture Park near Wakefield

An account of Hitler's decision to invade the Soviet Union, which produced an initial series of dazzling victories until the harsh winter of 1941 took hold, with fatal consequences for the ill-equipped German army. Narrated by Laurence Olivier

Fiona Bruce presents the show from Wollaton Hall in Nottingham, where items brought in to be valued include a portrait of a forgotten Romantic poet and some rare Elizabethan clothing. The imposing Elizabethan mansion appeared as Wayne Manor in several Batman movies, and Fiona is challenged to guess the value of a collection of props and costumes. Plus, the story of a Tyrannosaurus Rex skeleton kept in the house

Fiona Bruce presents the show from London's Crystal Palace Park, where treasures include James Bond books, a Lego portrait of the late Queen and vintage Vivienne Westwood outfits. She also explores the Park's unique sporting heritage, and tests her knowledge with a guessing game of gemstone values.

An account of Hitler's decision to invade the Soviet Union, which produced an initial series of dazzling victories until the harsh winter of 1941 took hold, with fatal consequences for the ill-equipped German army. Narrated by Laurence Olivier

Henry Cole and Simon O'Brien travel Britain searching for items to fix up and flog for their owners. In East Sussex and Hertfordshire, the duo's finds include a Victorian egg incubator

On the evening of December 3, 1926, Agatha Christie left her home in Sunningdale, Berkshire, in her Morris Cowley. Ten days later, Agatha was discovered in a hotel in Harrogate, claiming to have lost her memory. Lucy Worsley delves into this traumatic, watershed moment in Christie's life. She visits the key locations, from the chalk pit where Agatha crashed her car to Abney Hall, the grand house where she took refuge (and which would inspire several of her books)