Below are my picks of the world's most notable shows, returning/premiering on UK screens this week...
When Corden Met Barlow (BBC1, 9pm) Lifelong Take That fan James Corden spends time with his idol, lead singer Gary Barlow, on a road trip.
★ The Island with Bear Grylls (Channel 4, 9pm) New reality show where 13 men are left to survive on a remote Pacific island, overseen by famous survivalist Bear Grylls. (1/5)
Almost Human (Watch, 9pm) Season 1 of the US sci-fi drama about a futuristic cop partnered with a robot. Starring Karl Urban, Michael Ealy, Lili Taylor, Minka Kelly & Mackenzie Crook. (1/13)
★ Hannibal (Sky Living) Season 2 of the US crime horror. Starring Laurence Fishburne, Mads Mikkelsen & Hugh Dancy. (1/13)
Vertigo Roadtrip (BBC1, 9pm) Special where Mel Giedroyc takes five people with extreme fears of heights on a trip to cure their debilitating phobia.
Billy Connolly's Big Send Off (ITV, 9pm) Two-part documentary where the comedian embarks on a personal journey about the issues surrounding death. (1/2)
24 Hours in A&E (Channel 4, 9pm) Series 6 of the fly-on-the-wall documentary looking at the medical staff of King's College A&E. (1/7)
★ 24: Live Another Day (Sky1, 9pm) Revival of the hit action thriller for a miniseries where Jack Bauer finds himself embroiled in a plot to assassinate the US President on British soil. Starring Kiefer Sutherland, Mary Lynn Rajskub, William Devane, Kim Raver, Yvonne Strahovski, Michelle Fairly, Stephen Fry, Benjamin Bratt, Tate Donovan, Michael Wincott & Colin Salmon. (1 & 2/12)
Jonah from Tonga (BBC3, 10pm) New mockumentary series from Chris Lilley, focusing on disobedient teenager Jonah Takalua. (1/6)
★ Louie (Fox) Season 4 of the US comedy. Starring Louis C.K. (1/14)