TV tonight: how Churchill became a screenwriting star

An inimitable aesthetic ... Winston Churchill. Photograph: Publicity Image

Churchill and the Movie Mogul
9pm, BBC Four

With his firebrand speeches and inimitable aesthetic, it is no wonder that Winston Churchill has been the subject of countless Hollywood films. What is less known is his own career as a screenwriter for the British film magnate Alexander Korda. This feature-length doc is packed with incredible archive material and tells the story of how the two men fashioned a movie campaign centred on British values to rival the pre-war efforts of Germany and Russia. A fascinating niche. Ammar Kalia

The Highland Midwife
8pm, Channel 5

Set against the magisterial backdrop of the Cairngorms, this new series follows rural midwives who have the lives of mother and child in their hands as they deliver babies hundreds of miles from the nearest hospital. Tonight: a 40-hour labour and a close call on the way to the hospital. AK

Japan With Sue Perkins
9pm, BBC One

The tour continues, moving from megacity Tokyo into the scenic landscapes of Kyoto and the troubling history of Hiroshima. Perkins examines the uncertain future of working geishas and the proliferation of government-subsidised speed-dating for the growing population of young singles. AK

The Big Hospital Experiment
9pm, BBC Two

The last dispatch from the Royal Derby hospital, where young volunteers are trying to ease the lack of care caused by staff shortages, is the most vivid demonstration yet of the series’ core message: spending time with patients prompts intimate and intensely emotional human connections. Jack Seale

Doc Martin
9pm, ITV

The irascible medic ... Martin Clunes and Caroline Catz in Doc Martin. Photograph: ITV

Dr Martin Ellingham’s career hangs by a thread at the start of a new series for Martin Clunes’ irascible Cornish medic. Which is not altogether surprising, given his phobia of blood and awful bedside manner. Elsewhere, Al accidentally proposes and Mrs Tishell’s date with Donald goes horribly wrong. Ali Catterall

Krypton
10pm, E4

The return of the now-cancelled Superman prequel, which managed to stretch out the story of Clark Kent’s ancestors to an impressive degree but which – sadly for its many fans – did not enjoy such a long run itself. As it continues for a final season, Seg-El finds himself on Brainiac’s home planet of Colu. Hannah J Davies

Film choice

Sex education ... Helen Hunt and John Hawkes in The Sessions. Photograph: c.FoxSearch/Everett/Rex Features

The Sessions (Ben Lewin, 2013) 1.05am, Channel 4

Lewin’s thoughtful drama is based on the true story of Mark O’Brien (John Hawkes), a California poet mostly confined by childhood polio to an iron lung. Nearing 40, he decides it is time to lose his virginity, which leads him to sex therapist Cheryl (Helen Hunt). It is well acted, funny and sweetly moving. Paul Howlett