The murky and intense adaptation of Peter James’s crime novels, set against the thick Brighton coastline, returns for a second season. John Simm is back as DS Roy Grace, who believes the body of a former teacher and the finding of human remains are linked – the work of a sadistic serial killer who leaves a bizarre calling card at the scene of each crime. Down the road in Hove, a man finds a pen drive on the train that ends up getting him involved in the investigation and worrying for the lives of his wife and child. Hollie Richardson
Our Changing Planet
7pm, BBC One
An ambitious project with six threatened, changing habitats around the world tracked across seven years. We begin with Steve Backshall visiting the dazzlingly beautiful and minutely ecologically balanced coral reefs of the Maldives. A decent balance of righteous eco-polemic and nature celebration. Phil Harrison
9pm, BBC One
There has not been much of a honeymoon period for our Yorkshire newlyweds, and now Anne (the masterful Suranne Jones) finds herself distracted. First up is a business opportunity: the railway has arrived in town and Anne is curious. Then there’s the matter of an increasingly forlorn Mariana, who wants to talk. Henry Wong
Idris Elba’s Fight School
9pm, BBC Two
Tonight’s tense episode leads to the big day, as Elba’s boxing proteges face their first sparring in the ring – and he has no qualms about sending home anybody who isn’t up to it. With a lack of focus and fitness among the group during training, is it already the end for some of them? HR
SAS: Who Dares Wins
9pm, Channel 4
We’re halfway through the SAS selection process, and the remaining recruits are facing their most brutal challenges yet: a seven-meter backwards dive; hand-to-hand combat in a game of murderball, to test their aggression and strength; and an ambush while out driving. No surprise that four recruits will hand in their armbands before the credits roll. Ali Catterall
Brothers in Dance: Anthony and Kel Matsena
10.20pm, BBC Four
Next month, charismatic and cutting-edge choreographer siblings Anthony and Kel Matsena debut their production of Shades of Blue / Warrior Queens at Sadler’s Wells in London. This documentary tracks their journey as they rehearse for a work inspired by the Black Lives Matter movement. HR
Women’s Six Nations Rugby: England v Ireland 11.45am, BBC Two. Both teams’ fourth and penultimate match of the championship, held at Welford Road.
Super League Rugby: Wigan Warriors v Salford Red Devils 12.30pm, Channel 4. Top-flight clash at DW Stadium.
Women’s Super League Football: Tottenham v Chelsea 2.15pm, BBC One. The London rivals meet at the Hive.
Premiership Rugby Union: Saracens v Exeter Chiefs 2.30pm, ITV. A league game at StoneX Stadium.
Premier League Football: Liverpool v Everton 4pm, Sky Sports Main Event. The Liverpool derby from Anfield.