The Secret Life of the Zoo
8pm, Channel 4
The hidden cameras return to Chester Zoo for a second series. As ever, its appeal is in its simplicity: filming the animals after hours; filming in the parts of the zoo that the public don’t see; and interviewing the people who work there (who – with all due recognition that they would hardly say otherwise – seem hearteningly committed). Tonight, they deal with the strange logistics of zebra pregnancy and sloth matchmaking. Andrew Mueller
The Apprentice
9pm, BBC1
After last week’s annual “buying stuff” task, the would-be apprentices get nautical. Their challenge is to buy the right products to then punt off at a blustery and miserable Poole harbour boat show. There’s everything from full-face snorkels and cushions shaped like carp right the way up to jet skis and speedboats. The ludicrous Karthik bags the team leader spot for Titan, while Francis has it all to do, having been on every losing side since day one. Ben Arnold
Close to the Enemy
9pm, BBC2
The role of army HR facilitator in the aftermath of the second world war continues to stretch intelligence officer captain Callum Ferguson. This week, his attempts at schmoozing German scientist Dieter into joining Britain’s cold war effort flounder in the face of his unorthodox methodology. With Kathy and Victor also demanding the captain’s attention, could he be missing a threat to his mission from within the hotel itself? Mark Gibbings-Jones
Jack Taylor: Blood Cross
9pm, Channel 5
Iain Glen glints his way through a new Galway-set mystery. A man has been crucified on a hilltop, which leads whisky-fuelled PI Jack and his on/off squeeze Kate (Siobhan O’Kelly) to investigate whether one family is taking biblical revenge on another. The leads, plus the smoothly handsome Jack Monaghan as an ex-con Buddhist psychologist, have enough charm to atone for a story that slowly deflates from around the halfway point. Jack Seale
The Young Pope
9pm, Sky Atlantic
Episode four of the sinfully good Vatican fantasy that, with its various higher powerplays, sometimes feels like The West Wing in vestments. Having binned state visits, Pope Pius XIII (Jude Law) hosts the prime minister of Greenland, who has arrived to pay her respects with a giant halibut in tow. In an immaculate cassock, Law is as luminous and self-amused as a top-tier Bond villain. “I’m not profound, I’m presumptuous,” he purrs. Graeme Virtue
Confronting Isis
9pm, PBS America
How to make sense of the fight against Islamic State? While it’s already slightly out of date in the light of the recent assaults against Mosul, Martin Smith’s new feature-length documentary looks at the terrorist group’s roots and rise, and the reasons it has proved such a stubborn opponent. Reporting that is ambitious enough to aim for offering a first draft of history, it explores how Isis has flourished in part because of a divergent opposition. Jonathan Wright
60 Days in Jail
10pm, Channel 4
Episode two of the super-ambitious reality show in which ordinary citizens go undercover at Clark County Jail in Indiana, in the hope of busting vice among both inmates and prison staff. It’s a tricky, high-stakes operation in which only the county sheriff and one of his deputies are aware of the deception. This week, new inmates include police officer Tami, who doesn’t immediately settle well, and marine Zac, who does. David Stubbs
Film choice
Ransom (Ron Howard, 1997) 9pm, ITV4
Mel Gibson’s airline tycoon and wife Rene Russo receive a $2m ransom demand after their nine-year-old boy is kidnapped. But Gibson doesn’t give in to demands; he announces on TV that, yes, he’ll pay the money, to anyone who brings in the kidnappers (led by Gary Sinise and Lili Taylor), dead or alive. It’s a nifty spin on the old tale – in fact, a remake of Alex Segal’s 1956 thriller.
Live sport
Tennis ATP World Tour Finals. Coverage of the afternoon session on the fifth day in London. 12 noon, Sky Sports 1
Darts Grand Slam Action from day six, featuring the concluding four second-round matches. 7pm, Sky Sports 1
Test Cricket New Zealand v Pakistan. The latest from the second day of the first Test in the two-match series from Christchurch. 9.55pm, Sky Sports 3
