There's the final part of The Skinny Jab Revolution, new series Chess Masters: The Endgame, Michael Sheen's Secret Million Pound Giveaway, and Friends star Courteney Cox is the subject of Who Do You Think You Are? USA . . .
In the second and final part of her investigation, Kathryn Thomas digs deeper into what is driving the need for GLP-1 medications.
She’ll also be looking into the wider societal impact of their widespread use.
She questions whether the food environment is now so toxic that weight loss without medication is becoming harder.
Kathryn also speaks to experts in the fields of obesity, neuroscience and ultra-processed food marketing.
Chess Masters: The Endgame, 8.00pm, BBC Two
Sue Perkins hosts this high-stakes contest following 12 rising stars of the UK's chess community as they battle it out in a series of puzzles and eliminators.
The contest kicks off with the first of two heats, which sees six plays from across the UK arrive in Cardiff where they face a brain-boggling puzzle and a high-stakes game of chess.
Michael Sheen's Secret Million Pound Giveaway, 9.00pm, Channel 4
Here’s a documentary following the actor Michael Sheen (below) as he uses his own money to buy £1million of debt belonging to hundreds of people across his native south Wales.
Sheen then writes that debt off to expose how big banks and credit finance companies profit from the most vulnerable in society.
As the cost-of-living crisis continues to hit, Michael takes on the banks, investigates alternative, more affordable solutions for borrowing, and calls on the government to demand a fairer, more inclusive credit system in the UK.
Great Continental Railway Journeys, 6.30pm, BBC Two
Former Tory minister and latterday train enthusiast Michael Portillo (below) returns for an eighth season of rail travels and begins a journey across the Balkan countries of Croatia and Bosnia and Herzegovina.
His first leg takes him from Pula, on Croatia's Istrian peninsula, to the town of Buzet.
Along the way he takes up shield and sword in a 2,000-year-old Roman amphitheatre and explores an organic olive farm at Chiavalon.
He also rides in the presidential Cadillac to the summer residence of Marshal Josip Tito, the communist president of Yugoslavia until his death in 1980.
Is Greenland for Sale? 7.00pm, BBC Two
US president Donald Trump says he wants the US to take over Greenland.
The country is part of the Kingdom of Denmark, and Mr Trump says Denmark should 'give it up' for the defence of the free world.
Many people think it will never happen. But we are living through strange times.
This documentary gauges the reaction in Greenland and Denmark to see whether such a thing could ever be possible and asks how and why the US might want greater control over Greenland.
Panorama, 8.30pm, BBC One
This week’s episode offers a report on the recent wildfires which engulfed parts of Los Angeles, examining the impact of both climate change and claims of underfunding for public services on the disaster.
Drawing on never-before-seen footage, survivor testimonies and expert analysis, the programme unravels how Los Angeles burned, who fought to save it, and what happens next.
Trasna Na Líne, 10.00pm, Virgin Media One
This latest short in this run of new Irish film is a mockumentary comedy documenting the first day of term at Dublin's 'best' gaelscoil.
The cast features Heather O'Sullivan, Siobhán O'Kelly and Brid Ní Chumhaill.
Storywise, new student teacher Emma reveals her secret - she lied on her CV and can't speak any Irish at all. Two teachers are enlisted to get her across the line.
Who Do You Think You Are? USA, 7.30pm, BBC Four
Tonight’s show sees Friends actress Courteney Cox (below) trace her maternal line back to ruthless and ambitious relatives who plotted and murdered their way to power in medieval times.
On top of that, she is subsequently shocked shocked to learn about an ancestor who is one of European history's most famous characters.
Dave Allen, 9.00pm, BBC Four
The late, great Dublin comedian Dave Allen looks at the English, the Irish and many other illogical aspects of life - with his own unique wit and satirical observations.
With Susan Jameson, Michael Sharvell-Martin, Robert East, Paul McDowell, Sam Kelly, Roger Martin, Lisa Blour and Annabel Price.
This particular show was first broadcast in April 1985.
Israel and the Palestinians: The Road to 7th October, 9.00pm, BBC Two
In this third and final instalment, the documentary reaches Donald Trump's first term as US president, when he tore up the rulebook on how to deal with the Israeli-Palestinian conflict.
Moving the US embassy to Jerusalem, holding talks with the Israelis without the Palestinians - nothing was off the table.
Meanwhile, Netanyahu had his own bold plans, which included looking to build alliances with Israel's Arab neighbours who had never before recognised Israel, while hoping to keep Hamas contained in Gaza.
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