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Martin Luther King Jr and Emmeline Pankhurst – four of the 20th century’s greatest activists. Gandhi employed non-violent tactics to help secure independence for India, while the deaf and blind Keller used her fame to fight for the rights of marginalised people everywhere. King was arguably the most influential figure of the black civil rights movement in the US, while Pankhurst was a controversial figure in the fight for women’s suffrage.

Adam begins a journey of self-discovery that opens his eyes, as well as his heart, while Jenny grapples with her secret, and Pete is preoccupied with helping the troubled Evan. David struggles with being a kept man since Nikki’s windfall and Karen prepares for the twins’ 18th birthdays.

Imagine – James Graham (BBC1, 10.45pm)

It’s perhaps an odd moment to broadcast a documentary about playwright James Graham. Usually such documentaries are aired after a moment of triumph, but this one comes after his most recent project, the screenplay for Channel 4’s Brexit: The Uncivil War, disappointed in the ratings - what’s more, there presumably won’t have been time to add anything about his feelings on the matter, which would have been interesting. But never mind. Instead, Alan Yentob talks to Graham while trying to figure out what makes him tick. He also learns more about his childhood in a former mining town in Nottinghamshire, while journalists, politicians and collaborators including Benedict Cumberbatch and Martin Freeman offer their views on his work.

Koalas: Cute and Cuddly (C5, 7pm)

They may be adorable (and Australian icons) but, as the first in a two-part documentary discovers, the koala population has been in decline. The tree-dwelling marsupials are facing challenges ranging from a dwindling food supply and predators to human interference. The programme examines the creatures’ battle for survival as they adapt to a constantly changing environment and the steps being taken to boost their numbers and ensure that koalas are around to charm us for generations to come.

Warkworth (BBC4, 7.30pm)

Archaeologist Ben Robinson explores the story of the English village from Norman times to the present day. His first destination is Warkworth, Northumberland, where, he discovers clues that point back almost 1,000 years to the Norman Conquest and how the invaders laid the foundations of a planned community, still visible to this day. Ben argues that Warkworth, like many of the oldest villages in the country, was born of terror, oppression and foreign invasion by the Normans, who wanted to enforce conquest and control after 1066.

Ben Fogle: New Lives in the Wild (C5, 9pm)

Ben journeys to the rugged Irish Atlantic coastline in the bleak midwinter. He stays with Judith, an 80-year-old who rejected a modern way of life for one closer to nature. Ben learns how she and her late husband created a utopia and discovers how – even at an advanced age – she is determined to remain alone in the wild. Ben joins his maverick host in her solitary cottage nestled in the hillside, a treasure trove of art and books she has called home for 40 years. Shunning the modern world, Judith

and his small group of mercenaries. They seek a necromancer in a remote marsh who possesses the power to bring the dead back to life. Osmund is conflicted about the quest: while he believes in God, he also cannot bear to let the people he loves fall victim to the black plague. Eventually the party discovers the necromancer, a mysterious beauty called Langiva (Carice Van Houten), and she offers Osmund his heart’s desires. However, every wish comes with strings attached and, for the valiant knight, the price demanded by Langiva could be his life.

The Gift (2015) (Film4, 11.05pm)

Wittrock). The men drift through shark-infested waters with little food or water until a Japanese crew picks them up. The men are tortured and separated. Louis is sent to a POW camp where sadistic commander Mutsuhiro Watanabe, aka The Bird (Miyavi), sets out to break the Olympian’s spirit.

SIMON (Jason Bateman) and his emotionally brittle wife Robyn (Rebecca Hall) move back to his home city of LA. During a shopping trip they cross paths with Simon’s old school friend Gordon Mosley. The following day, the Callems find a bottle of wine from Gordon on their doorstep. In the days that follow, Gordon arrives unannounced at the house while Simon is at work and forges an uneasy bond with Robyn.

Starship Troopers (1997) (ITV4, 9pm)

IN the 23rd century, citizenship and the right to vote have to be earned, usually by military service. A group of high school graduates, including Johnny (Casper Van Dien), his girlfriend Carmen (Denise Richards) and best friend Carl (Neil Patrick Harris) all enlist, and find themselves involved in a war against alien insects. However, the soldiers are unprepared for the carnage that awaits.

AN elite squad of commandos, led by Dutch (Arnold Schwarzenegger), arrive in the South American jungle on a mission to rescue officials who have been kidnapped by terrorists. However, they soon realise there is something even more dangerous lurking amid the trees – a murderous alien hunter who likes to skin its human prey alive. Forget the recent reboot The Predator, the original is still the best. The special effects hold up surprisingly well but what really makes this thriller work is the sheer tension, which milks the brilliantly simple premise for all its worth.

staff and patients, including Kate, whose pregnancy has been complicated by the discovery that she has cancer, and Rebekah, who has been waiting almost four months to have a tumour removed from the wall of her womb.

Death in Paradise (BBC1, 9pm)

The presenter of TV holiday series Hot Shots takes a midnight swim, only for her body to be washed up on the shore. Initial evidence points towards accidental drowning but Jack is troubled by marks on the victim’s neck and, as he questions her colleagues, a secret affair, unrequited love and rocky working relationships convince the DI that this was no accident. With Florence away on a romantic weekend, JP steps up to help the DI with the case,