My First Threesome
10pm, Channel 4
Channel 4’s fixation with threesomes continues with this doc following threesome first-timers. According to recent research, most of us have fantasised about sex with more than one person. But how does the reality measure up? Watching your partner having sex with someone is clearly a peculiar emotional experience for many. And then there are the practicalities: what happens afterwards? Phil Harrison
Portrait Artist of the Year 2021
8pm, Sky Arts
This art competition has quietly established itself as an autumn institution. Stephen Mangan and Joan Bakewell introduce a new batch of artists who will be aiming to impress an expert panel. Their subjects include singer Gabrielle, The Queen’s Gambit’s Jacob Fortune-Lloyd and model Grace Neutral. PH

Hunting the Essex Lorry Killers
9pm, BBC Two
“There were three or four seconds of trying to process what you were seeing,” says the first police officer to arrive on the scene when a lorry containing the bodies of 39 Vietnamese migrants was discovered in Essex. But what happened next? This bleak, frequently horrifying documentary tracks the hunt for the people smugglers and the search for the truth about their victims. PH
Hollington Drive
9pm, ITV
What is going on behind the twitching curtains of Hollington Drive? Secrets are slowly revealed in this suburban thriller from Sophie Petzal. As the police make their first arrest, Theresa (Anna Maxwell Martin) is occupied with other thoughts, and Ben comes to a surprising decision. Ellen E Jones
Restoring the Earth: The Age of Nature
10pm, BBC Four
Episode two of the ambitious natural history series looks at how different species interconnect in varied ecosystems, across Scotland, South Africa, China and beyond. Hannah J Davies
Brassic
10pm, Sky Max
Joe Gilgun’s lairy but heartfelt comedy continues with a nautical episode. After a farcical funeral, Vinnie and the gang set sail in a rickety old tub to honour the final wishes of Gideon’s late mother. Swells, swears and a potted history of Orville the Duck all feature. Graeme Virtue
Live sport
IPL Cricket Wed, 2.50pm, Sky Sports Cricket. The second qualifier match.