TV tonight: the trials of a second marriage in Last Tango in Halifax

Last Tango in Halifax

9pm, BBC One

Sally Wainwright’s adapted story of her mother’s second marriage returns for its fifth series. Now seven years into their marriage and with a heart attack and a new house behind them, Alan (Derek Jacobi) and Celia (Anne Reid) are settling into their differences, with left-leaning Alan now wanting to take up a job at the local supermarket to help fund Celia’s increasing desires for an expensive new kitchen. Progressing at a stately pace, it’s a charming take on the nuances of two mismatched families forced to come together. Ammar Kalia

Win the Wilderness: Alaska

9pm, BBC Two

The challenge to take over Duane and Rena’s idyllic isolation continues. This week, one half of each couple must head off for two nights alone in a wilderness cabin, but who is mentally strong enough to cope? It doesn’t sound long but, as Duane explains, the solitude can be “a horrifying experience”. Hannah Verdier

Art on the BBC: Constable – The Rural Rebel

9pm, BBC Four

Art historian Rose Balston delves into the BBC archives to reframe the work of John Constable, an artist often seen as the quintessential painter of chocolate-box British landscapes but considered a radical in his time. Balston reveals his passion for nature as well as for Suffolk women. AK

Love Island: The Live Final

9pm, ITV2

The first ever winter season of ITV2’s hook-up hit has struggled to match its flirty summer forebears in terms of ratings, and has been overshadowed by tragedy. Still, one couple – or selfish singleton, if they play their cards right – will tonight leave the sprawling Cape Town villa £50,000 richer. Graeme Virtue

The Disappearance of Crystal Rogers

10pm, Sky Crime

The flood of true-crime docs shows no sign of abating. This latest saga explores the 2015 disappearance of 35-year-old Kentucky woman Crystal Rogers. A year after she vanished, her father was shot dead while searching for her. Could other unsolved Kentucky killings point to a wider story? Phil Harrison

The Food That Built The World

9pm, History

This three-part series delves into the stories behind the iconic food brands that have come to dominate the global market. First up are Henry Heinz and John and Will Kellogg – the former being the inventor of ketchup in the late 19th century, and the latter being a pair of cereal-making vegetarians. AK

Film choice

Andrei Rublev, 11.55pm, Film4

A masterly recreation of turbulent medieval Russia, where Rublev was an icon painter portraying man’s inherent goodness even as the Tartar hordes descended. Andrei Tarkovsky creates eight fictional episodes from Rublev’s life, culminating in a brilliant colour sequence of his work. Paul Howlett

Live sport

Women’s Super League Football: Manchester City v Chelsea 1.45pm, BT Sport 2. Top-flight match.

Six Nations Rugby Union: England v Ireland 2.10pm, ITV. The unbeaten Irish face the English at Twickenham.

Premier League Football: Arsenal v Everton 4pm, Sky Sports Main Event. From Emirates Stadium.