One groom's surprise announcement might leave him stranded by a runaway bride, and a twice-married single mum hopes to find love that will last.

A brand-new chapter of the experiment begins for all of the couples, as they gather together for their first dinner party under the watchful eye of experts Mel, Paul and Charlene.

The next phase of the experiment begins, as the first four couples embark on luxury honeymoons in the sun.

It’s Yes Week... the newly-weds explore power play in their marriages and move in together

Important decisions lie ahead at the Commitment Ceremony... who will stay or leave?

Another four strangers take the ultimate gamble on love and tie the knot with a total stranger. While one bride gets more than she bargained for, an overprotective friend threatens to spoil the big day for a groom and his new husband.

In this extended opening episode, the brides and grooms enjoy one last night of freedom at their stag and hen parties. The drama kicks off early when one groom's controversial opinion leaves everyone questioning whether he's there for the right reasons.

The return of the experiment to see whether science can help people fall in love, with experts Mel Schilling, Paul C Brunson and Charlene Douglas ready to help 16 hopeful singles find their perfect match. Before these strangers walk down the aisle, they get to celebrate their final night of freedom together at the ultimate stag and hen parties - where a surprise is in store.

Two more couples take the ultimate leap of faith, and one couple discover they have an immediate connection, but will the bride's traditional values put a dampener on their wedding night?

In this first episode, after a year of rigorous testing and measuring the experts decide who will marry who.

It's wedding day. After months of testing, two couples, matched by experts, meet for the very first time at the altar to get legally married. Will they even fancy each other?

The couples finally get some time alone and spend their first night as husband and wife before setting off on honeymoon. Five weeks later, will they decide to stay married?

Two strangers meet and marry. Will the newlyweds grow to be a real couple over the next five weeks? Or will a quickie divorce be required?

Would you marry a complete stranger you first meet on your wedding day? A panel of experts match up a couple. Will true love flourish for these two singletons looking for The One?

Two more couples put their trust in science. But will they make it down the aisle and marry at first sight?

The newlyweds head off on their honeymoons, sharing romantic activities in exotic locations. Will they fall in love? Or for one couple, will the football on TV get in the way?

In this 90-minute special, four couples who met for the first time on their wedding day live together for four weeks as husband and wife. And then they must decide whether to stay together or split.

The experts match Stephanie with Benjamin and Carrie and Wayne. Can the couples persuade friends and family that marrying a stranger isn't such a crazy idea? And will they actually like each other?

With Richard and Harriet about to exchange their wedding vows, newlyweds Benjamin and Stephanie are already on honeymoon in Mallorca - and starting to get a little closer

Stephanie and Benjamin are living together now and learning that the path to true love does not always run smoothly. And Harriet and Richard head to Lisbon for their honeymoon.

The two couples who married at first sight enter the final weeks of the experiment. Do they have a long-term future. Will they stay together or seek a divorce?

The first two couples heading down the aisle are nurse Steph and property manager Jonathan, and office manager Verity and IT consultant Jack.

While Verity and Jack exchange wedding vows seconds after their first meeting, newlyweds Jonathan and Stephanie start getting to know each other on their honeymoon in Seville

Steph and Jonathan are now living together, learning that true love doesn't always run smoothly, as Verity and Jack get to know each other on honeymoon

The two married couples are in the final weeks of the experiment. Do their 'instant marriages' have a long-term future? Will they even make it as far as Decision Day?