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?

Primary school teacher Michelle, IT sales manager Owen, businessman David and events manager Shareen receive the exciting news that they have been matched by the experts. What will their families say?

Michelle and Owen have an awkward start to married life, leaving them questioning their fledgling romance. And David and Shareen hit a bump in the road on their honeymoon.

As the newly-weds prepare to move in together, the Covid-19 pandemic hits Britain. Owen and Michelle's lockdown love-in leads to a dilemma, while David and Shareen enjoy a romantic getaway.

After four months as husband and wife, Owen and Michelle face a make-or-break decision, as they deal with living 250 miles apart. And David and Shareen grapple with finding common ground.

Before our 16 strangers walk down the aisle, they celebrate their last night of freedom, at the ultimate stag and hen parties, where a surprise is in store. And the first two couples get married.

More strangers take the ultimate gamble - but will opposites attract when they meet at the altar? And Married at First Sight UK celebrates its first same sex wedding.

The next phase of the experiment begins as the first four couples go on their honeymoons. Some relationships blossom, while other couples aren't sure they're compatible.

The experts match another two couples, but when the big day arrives, one bride and groom quickly discover that their differences may be an issue

The final four singles plunge into marriage with a complete stranger. One couple struggle to connect, and a bride goes against her family's advice to find love.