10pm, U&Alibi
This western noir crime thriller was an unsung gem when it started last year, so the second season is a welcome return. Lt Joe Leaphorn (Zahn McClarnon) is reunited with his deputy turned private eye Jim Chee (Kiowa Gordon) when separate cases lead to the same suspect. Their investigations take them to the high desert of Navajo country, where old wounds are about to be ripped open. Hollie Richardson
8.30pm, ITV1
With the energy cap rising yet again, reporter Datshiane Navanayagam looks ahead to the colder weather and asks what consumers can do to keep their bills at a manageable level. If, that is, they didn't already take all the reasonable steps available last winter. Jack Seale
9pm, BBC One
From a baby that has accidentally poured boiling tea all over himself to a thirtysomething man who is feeling suicidal, the last visit to this north London response unit is as emotional and intense as ever. There's also a woman in her 80s who is trapped under a car and a teenager who has been stabbed. HR
9pm, BBC Two
After growing up in the Welsh valleys, Howard Marks went to study at the University of Oxford - where within the week he had started taking drugs. He went on to become one of the world's most prolific cannabis smugglers and wrote a bestselling memoir. This two-parter speaks to his inner circle, who tell his wild story. HR
9pm, Channel 5
The Gladiator sequel has brought with it a renewed interest in Rome's mighty Colosseum. In this two-part documentary, historian Dan Snow finds out exactly how the historical marvel was made in just a decade and learns about the events that really took place inside it (sadly, with no Paul Mescal). HR
9pm, BBC Three
Season six of the reliably fabulous drag-off reaches the semi-final stage, with the remaining queens required to sling caustic zingers as part of a circus-themed comedy roast. As the ringmaster said to the clown: those are some big shoes to fill. But help is at hand in the form of Derry Girls' Siobhán McSweeney. Graeme Virtue