The dating show boom that has swept the world's television screens since the success of Married at First Sight may be coming to an end, experts predict.

Now it is time to get divorced.

Producers are falling over themselves to make new shows about warring couples where everything has gone wrong.

Analyst Virginia Mouseler said at the world's top TV gathering MIPTV in the French resort of Cannes on Monday that the tsunami of classic dating shows that followed the US blockbuster had run its course.

"In the three years since Married at First Sight the tide seems to have turned," she said.

Instead a host of new shows are coming with couples making dramatic last-ditch attempts to save their relationships－or deciding to split.

The Latvian hit Mirror of Truth puts unhappy couples through intense therapy and then asks them to choose whether they should stay together.

The cathartic One Night with My Ex from Britain's Channel 5 locks both partners from a failed relationship in an apartment "for the most intense night of their lives".

The idea is that they either salvage something from the wreckage or get the answers they need to move on, said Mouseler, who heads The Wit, an influential trends newsletter.

Couples go on a nostalgic journey to see if they can rekindle the spark in Finland's Rewind Love, while across the Baltic Sea in Denmark they take a more ruggedly radical approach.