Tonight's highlights include Bell X1 on The Heart of Saturday Night, Pink Floyd: The Endless River, Florence Pugh, James Bond, Harry Potter and the tragic final tale of a war correspondent . . .

Pick of the Day

The Heart of Saturday Night, 9.40pm, RTÉ One

Once again, Una Healy and Loah present this enjoyable music show from the Round Room at the Mansion House in Dublin.

The guests on this penultimate show include Bell X1, Declan O'Rourke, Derek Ryan, Una Healy and Na Mooneys, as well as a number of special performances remembering the late and much-loved John Prine (below).

Don’t Miss

The Void, 8.00pm, Virgin Media One

Ashley Banjo and Fleur East (below) are back to host the game show - something’s that been a Saturday night staple on television for more than half-a-century.

This week’s contestants include an ultra-marathon runner, an IT student and a Muay Thai boxer taking on a wide range of demanding mental and physical challenges to win a jackpot of £25,000 .

The catch here, of course, is they have to avoid the terrifying prospect of falling into a huge tank holding 520,000 litres of water called the Void.

Under the Wire – Storyville, 10.40pm, BBC Four

Here’s another chance to see this gripping documentary about the final joint assignment of war correspondent Marie Colvin (below) and photographer Paul Conroy.

They went to cover the siege of Homs in Syria in 2012, during which the highly respected Colvin was killed by artillery fire.

The film tells the story of the pair's fateful mission and Conroy's epic battle to escape the city to tell the world of his fallen colleague and the plight of the people of Homs.

New or Returning Shows

Pink Floyd: The Endless River, 9.00pm, Sky Arts

Streaming on NOW TV

In 2014, artist, animator and director Ian Emes created a visual accompaniment to Pink Floyd’s Endless River album.

The album primarily comprises instrumental and ambient music based on the Division Bell album sessions, and as Ian Emes says: "The challenge was to make a film which complemented the album experience.

"With the all-enveloping rhythms and dream-like power of The Endless River music, my goal was to make something immersive and spatial, in which image and music are one."

Directed and produced by Ian Emes on location in London and Exmoor National Park, it was shot by a number of cinematographers, including Bud Gallimore and David Cawley.

New to Stream

The Craft: Legacy, Sky Movies & NOW TV

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Continuing the story of teenage covens practicing magic at high school, a new group of friends - Franky, Tabby and Lourdes - go on the lookout for a fourth member of their circle in order to pull off a specific spell.

They befriend newcomer Lily and accept her into their coven, but soon find that their new cauldron-buddy may be carrying more baggage than just a broom and black cat.

Saturday Cinema

Iron Man 3, 7.25pm, BBC One

Here’s a hugely enjoyable superhero adventure sequel, starring Robert Downey Jr, Gwyneth Paltrow and Don Cheadle.

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The armoured avenger hunts for the mastermind behind an untraceable series of bombings, despite being cut off from his usual resources and traumatised by a recent brush with death.

His search uncovers a secret conspiracy involving a drug that renders the user indestructible.

Quantum of Solace, 8.40pm, RTÉ2

More spy fun and games, starring Daniel Craig, Olga Kurylenko, Judi Dench, Gemma Arterton and Mathieu Amalric.

James Bond sets out on a personal mission of vengeance as he pursues the secret criminal organisation Quantum.

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His search leads him to the head of an ecological corporation, who is plotting to orchestrate a coup in a Latin American country to get his hands on a precious natural resource.

Alien: Covenant, 10.40pm, RTÉ2

Ridley Scott's sci-fi thriller stars Katherine Waterston, Michael Fassbender and Danny McBride.

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A crew of colonists sent to populate an alien planet have their mission diverted by a mysterious signal.

After landing on a nearby world, they discover what became of the ill-fated Prometheus mission.

Fighting with My Family, 9.00pm, Channel 4

This is a fact-based drama, starring Florence Pugh, Lena Headey and Nick Frost, with Dwayne Johnson and John Cena playing themselves.

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The daughter of a family of British wrestlers gets the chance to fulfil her dreams by training with the WWE.

As she battles her way through wrestling boot camp to high-profile success, her brother is consumed with jealousy as he struggles to match her achievements.

Family Flick

Harry Potter and the Deathly Hallows: Part 1, 6.35pm, RTÉ One

We’re almost there.

Here’s the first half of the two-part conclusion to the fantasy saga, starring Daniel Radcliffe, Ralph Fiennes, Emma Watson and Rupert Grint.

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The dark lord Voldemort rises to ultimate power over the magical world, so the teenage wizard and his friends set out on a mission to find the magical horcruxes.

They are artefacts containing parts of the evil wizard's soul that hold the key to destroying him.

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