OPEN HOUSE: THE GREAT SEX EXPERIMENT 'AXED' BY CHANNEL 4 AFTER THREE SERIES

Channel 4 have reportedly axed reality format Open House: The Great Sex Experiment after three series.

A source told The Sun newspaper: "This was a programme that typified C4’s unconventional approach to making television, and nobody could say it wasn’t truly experimental. But despite some initial interest, it wasn’t enough to engage viewers long-term and the ratings quickly trailed off. C4 insists it has not made a decision on its return yet - but there is no sign of it coming back."

The bold social experiment followed a group of currently monogamous couples as they explore for the first time whether they would be happier in an open relationship. Though still largely taboo, the question of whether or not humans are truly suited for monogamy is a universal preoccupation which continues to divide opinion, not only among scientists, but among the public at large.

But what are the implications of renouncing monogamy? Assisted by sex therapists and relationship coaches, the couples will embark on a series of intimate challenges to road-test if the idea of having sex with other people is at odds with maintaining a committed relationship.

Open House: The Great Experiment is available to stream now on Channel 4.