Donal Fallon presents the wide-ranging new series Brainstorm, Ashley Jensen returns to play Agatha Raisin, Davina McCall presents Sex, Mind and the Menopause, and there are great movies from Almodóvar and Tarantino . . .

Pick of the Day

Brainstorm, 8.30pm, RTÉ One

Who invented the Leaving Cert and should it be scrapped? Where did the magic number of 10,000 steps a day come from? What are the benefits of living with a dog?

Social historian Donal Fallon examines a range of topics, delivering fascinating and surprising answers on everything from hurling to hangovers and pollen to postcodes.

The first edition looks at the greatest snooker player of all time (now, that could be contentious!), the benefits of living with a dog, why hay fever is going to get worse, and the story behind Michael Collins' slippers.

Don’t Miss

Shackleton's Cabin, 6.30pm, RTÉ One

On January 5, 1922, Kildare-born Antarctic explorer Ernest Shackleton (below) died of a heart attack in his cabin aboard the Quest.

One of the dockers removed Shackleton's cabin and it served as his family's garden shed for over 70 years before being donated to the Shackleton Museum in Athy.

This documentary follows Sven Habermann as he restores the cabin io its original state, and also reveals previously unseen archive material that brings viewers deep into the world of Shackleton's fearless adventures.

New or Returning Shows

Agatha Raisin, 8.00pm, Sky Max

Streaming on NOW

Ashley Jensen once again fills the designer shoes of the sassy private eye, leading her merry band of misfits on three new cases.

In the first, Gatha’s on-again, off-again, (currently off-again) love interest James Lacy has returned to Carsely after a successful book tour, and is leaving just as quickly, but this time with Agatha.

He’s taking her someplace special for a working holiday, a beautiful place by the sea where they can get busy on his new book. The Palace Hotel in Snoth-on-Sea.

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Their stay at the seen-better-days hotel is made all the more memorable with a set-to with the matriarch of an obnoxious family of fellow holidaymakers – and Agatha’s arrest the next morning.

It appears that the dreadful woman was murdered during the night and all signs point to Agatha as the killer.

Davina McCall: Sex, Mind and the Menopause, 9.00pm, Channel 4

Here’s a documentary in which the presenter Davina McCall (below) investigates how menopause can affect the mind as well as the body.

It’s a reality for many going through menopause that symptoms such as memory loss and brain fog are decimating women at work.

Davina also investigates the latest advances in hormone therapy, how the menopause changes the brain, and why testosterone is not just for boys.

Londongrad: Putin's Billionaires, 7.00pm, Virgin Media One

Presented by Virgin Media News Correspondent Richard Chambers, this documentary explores the murky world of London's Russian Oligarchs in a tale of spies, billionaires, assassins and exiles.

Vladimir Putin's oligarchs, many enriched through corruption and criminality, have colonised and dominated London.

They now live alongside a small band of Putin’s enemies, who fled Russia, seeking refuge in the United Kingdom, some of whom have paid for their courage with their lives.

An estimated 60 percent of Russian wealth exists offshore and oligarchs are attempting to move that wealth out of reach - so, how much dirty money has made its way to Ireland?

New to Stream

Parallel Mothers, Sky Store

Penélope Cruz, Aitana Sánchez-Gijón, Milena Smit, Israel Elejalde, Julieta Serrano, and Rossy de Palma star in this superb Pedro Almodóvar film.

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Two women, Janis and Ana, coincide in a hospital room where they are going to give birth.

Both are single and became pregnant by accident. Janis, middle-aged, doesn't regret it and she is exultant.

The other, Ana, an adolescent, is scared, repentant and traumatized.

Janis tries to encourage her while they move like sleepwalkers along the hospital corridors.

The few words they exchange in these hours will create a very close link between the two, which by chance develops and complicates, and changes their lives in a decisive way.

Ending Today

Snooker: The World Championship, 7.30pm, BBC Two

Coverage of the fourth and concluding session of the final at the Crucible Theatre in Sheffield.

This is where the first player to reach 18 frames will claim the title won by Mark Selby last year and a first prize of £500,000.

Mark Selby prevailed 18-15 against Shaun Murphy to win his fourth title, leaving him behind only Stephen Hendry, Steve Davis, Ray Reardon, and Ronnie O'Sullivan in the modern era and level with John Higgins.

Monday Movies

Once Upon a Time in Hollywood, 9.30pm, RTÉ One

Quentin Tarantino’s love letter to late-1960s’ Tinseltown is a joy from start to finish, and stars Leonardo DiCaprio, Brad Pitt, Margot Robbie, Timothy Olyphant and Al Pacino.

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Faded television actor Rick Dalton and his stunt double Cliff Booth (a great double-act from Leo and Brad) strive to hang on to their careers during the final years of Hollywood's Golden Age in 1969 Los Angeles.

As they navigate a changing film industry they barely recognise any more, they are drawn into the orbit of both ill-fated rising star Sharon Tate, and Charles Manson and his cult of zealous followers.

The Two Faces of January, 10.30pm, BBC Two

You can drift out Bank Holiday Monday with this enjoyable thriller based on Patricia Highsmith's novel, starring Viggo Mortensen, Kirsten Dunst and Oscar Isaac.

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A conman masquerades as a tour guide in Greece, and selects a wealthy American tourist and his younger wife as likely targets.

But when a murder is committed at the couple's hotel, all three are incriminated, and a dangerous alliance develops.

Family Flick

Nanny McPhee and the Big Bang, 3.50pm, RTÉ One

Fantasy comedy, with Emma Thompson, Maggie Gyllenhaal and Sam Kelly.

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A woman is left running the family farm alone while her husband is fighting in the Second World War.

The wart-faced magical nanny is on hand to help her cope with her unruly children, their even more mischievous evacuated cousins, and her scheming brother-in-law, who wants the farm for himself.

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