The Undercover Police Scandal: Love and Lies Exposed

9pm, ITV1
This shocking documentary series televises the “spy cops” scandal brought to national attention by the Guardian. Told by five female activists whose romantic partners suddenly abandoned them, it’s a moving, personal account of discovering you’ve been dating an undercover police officer – and an astonishing tale of their investigative nous. Alexi Duggins

500 Words With the One Show

7pm, BBC One
Alex Jones and Roman Kemp head to Buckingham Palace for this World Book Day celebration. Queen Camilla will be among those hearing the six winning stories in the BBC 500 Words competition for budding authors of primary school age, brought to life by celebrity readers including the great Olivia Colman. Graeme Virtue

Crufts 2025

7.30pm, Channel 4
It is day one of the world’s biggest dog show, and Clare Balding presents all the canine action from Birmingham. Terriers are the first group to be judged, with the winner going through to Sunday’s best in show final. Then it’s over to the hound group, where miniature dachshunds and huge Irish wolfhounds will be competing. It ends with athleticism and speed in the flyball heats. Hollie Richardson

The Apprentice

9pm, BBC One
With its strained mix of bonhomie and backstabbing, Lord Sugar’s business bunfight often feels like a team-building exercise gone wrong. So it makes sense to task the candidates with designing profitable away days in Turkey for corporate clients. The scenery is certainly spectacular, but can both sides keep their eye on the ball? GV

Small Town, Big Story

9pm, Sky Max

Chris O’Dowd’s slightly self-indulgent but still fun Ireland-meets-Hollywood sci-fi comedy drama continues – and the film production is in full swing. “I kinda feel Armie Hammer is due a comeback,” is one casting suggestion put to Wendy (Christina Hendricks). But she’s got an agenda of her own, which involves casting local people. HR

Bergerac

9pm, U&Drama
The rebooted 80s cop show continues with new Bergerac (now played by Brassic’s Damien Molony) pursuing leads all across the island of Jersey. The pressure is on to solve a murder and find a kidnapped baby before it’s too late. But not everyone believes Bergerac should stay on the case. Ellen E Jones

Live sport

Athletics: European Indoor Championships, 5pm, BBC Two
Day one from Omnisport Apeldoorn in the Netherlands, with Olympic bronze medallist Georgia Hunter Bell in the first round of the 1500m. Coverage continues on BBC Three at 8pm.