They’re famous for their marriages, divorces, and impossibly perfect pop songs.

But how much do you really know about ABBA?

In this series, Sara Cox is your guide to Sweden’s biggest musical export.

When Benny, Bjorn, Agnetha and Anni-Frid won the 1974 Eurovision Song Contest, their lives changed forever. But that win didn’t come easy.

Because the road to Waterloo is a long one. It took years of hard work, and the combination of four world-class talents - each of them already successful in their own right - to pull it off.

Through the BBC’s archive and new interviews with experts and insiders - as well as the group’s timeless back catalogue - you’ll get to know ABBA like never before.

With Waterloo, ABBA became an international act. But in the aftermath, they were almost written off as one-hit wonders.

In Episode 2 of ABBA: Eras, Sara Cox tells the story of how the group pulled themselves back from the brink of obscurity - and found legions of new fans a very long way from Sweden.

Featuring rare BBC archive, expert interviews and lashings of ABBA’s indelible pop, this is your window into the musical genius and sheer perseverance that brought ABBA to their rightful place at the top.

It’s 1979, and ABBA are one of the world’s most famous bands. But beneath their successful surface, things are changing.

In Episode 3, Sara Cox follows the band to the peak of their career. As ABBA release some of their most iconic and sophisticated music, their personal relationships come under incredible strain. The band play on - but how long can they really last?

Through the BBC Archive and brand new interviews, we chronicle the beginning of the end for the masters of the scene.

After a wildly successful but grueling decade, ABBA were no more. Their ‘indefinite hiatus’ allowed each member of the group to follow their own path. But nothing lasts forever - not even endings.

In Episode 4, Sara Cox tells the story of a comeback like no other.

From pop history’s greatest Greatest Hits, to theatrical smashes, Hollywood acclaim and futuristic entertainment experiences, ABBA have achieved a truly timeless legacy.

Through the BBC Archive and brand new interviews, you’ll understand exactly why.

After establishing themselves as one of music’s pop giants, the ABBA legacy continues in an exciting new chapter - ABBA Voyage. The futuristic and visually groundbreaking show ignites a new love for ABBA, once again.

In Episode 5, Sara Cox sits down with the producers of ABBA Voyage - Svana Gisla and Ludvig Andersson (who is also Benny from the band’s son) to discuss how the concept came about, and what really went into creating one of the most talked about shows of the last decade.

As Svana and Ludvig give us an exclusive behind-the-scenes look at ABBA in the studio and Sara Cox also digs into what might be on the cards for ABBA in the future.

Martin Freeman tells the story of the Fab Four’s rise, fall and rebirth - and how they changed the world along the way.

In the space of just 8 years, their journey took them from the smoky clubs of Hamburg and Liverpool, to Abbey Road and unprecedented global fame. And when their time together came to an end, each Beatle began anew - creating a body of work that’s still growing today.

As the world welcomes Now and Then - the first new music from the Beatles since 1995 - hear a fresh retelling of a story with no real end in sight.

In Episode 1, we meet the Beatles as they work their way to the brink of global superstardom - shaping their sound, honing their iconic look, and making the tough decisions that take them all the way to the top.

Featuring rare interviews from the BBC’s treasure trove of Beatles material, sourced with a little help from our friends on the Archive team, Eras: The Beatles is an immersive celebration of the biggest band in history.

It’s 1964. British Beatlemania is in full swing but, this summer, the Fab Four are about to go global - and nothing can stand in their way.

In Part 2 of Eras: The Beatles the band scales new heights as they enter the pop stratosphere on both sides of the Atlantic.

From silver-screen adventures to the invention of Stadium Rock, the BBC Archive team have scoured their collection for the interviews that put you right at the heart of those manic months on the road - including an exclusive find that hasn’t been heard since it was first broadcast 60 years ago. Hear the story of the Fab Four’s rise, fall and rebirth - and how they changed the world along the way, as narrated by Martin Freeman.

No high lasts forever. And in 1966, the pressures of fame begin to weigh on the globetrotting lives of John, Paul, George and Ringo. From a close-call with military police in the Philippines, to an all-out religious backlash in the United States, the band starts to question whether being a Beatle is quite so fab after all. Maybe it’s time for something new. To become a different band entirely.

In Part 3 of Eras: The Beatles, Martin Freeman finds the band at a critical juncture in their story - the extraordinary decision to abandon the live shows that made their name, and embrace the potential of the recording studio with the groundbreaking Sgt. Pepper’s Lonely Hearts Club Band.

When tragedy strikes at the end of 1967, the Beatles are faced with an uncertain future. In the months and years to come, cracks begin to show in the foundations of the world’s most powerful musical unit. As each member matured and developed as artists, the end became inevitable.

In Part 4 of Eras: The Beatles, Martin Freeman explores the pressures that broke the biggest band on the planet, and the incredible music that this turbulent era produced.

From the high-minded psychedelia of Magical Mystery Tour to the drama of Let It Be, to the masterpiece that was Abbey Road, the BBC Archive team have scoured their collections to bring you the interviews that shine a light on a dark period for the Beatles.

If you’re in the biggest band there ever was, how do you cope when it all comes crashing down?

That’s the question John, Paul, George and Ringo were asking themselves in the spring of 1970, when it was announced that the Beatles were breaking up for good.

In Part 5, Martin Freeman arrives at the end of an era - and the start of four more.

In the aftermath of the split, recriminations give way to new beginnings - and each individual Beatle embarks on a successful solo career. Rumours of a reunion swirl - before a senseless act of violence seems to draw a line under their story as a unit.

But a band like the Beatles never goes away. It lives forever in the people who love it.

And this is a story that never really ends..