When is When Harry Met Meghan: A Royal Romance on Channel 4 and what is the Meghan Markle documentary about?

CAN'T get enough of the latest sizzling royal love affair between Meghan Markle and Prince Harry? The perfect TV show for you is about to arrive.

Channel 4 doc When Harry Met Meghan: A Royal Romance will get to the bottom of just who Harry's potential bride is and how they got together. Here's the low-down...

When is When Harry Met Meghan being shown on Channel 4?

This one-off documentary will air TONIGHT, 9pm on Saturday October 28 on Channel 4.

It lasts an hour and follows another very different documentary, Hidden Britain By Drone.

Its main ratings rival will be Gunpowder episode two on BBC One.

What is When Harry Met Meghan about and what will it cover?

As the title suggests, the show will explore how Prince Harry fell for 36-year-old American actress and humanitarian Meghan Markle, whose real first name is Rachel.

News of their relationship shocked the world a year ago, with royalists criticising the fact Meghan has already been divorced and has starred in X-rated sex scenes in her US TV show Suits.

But the couple made their romance official earlier this year, and now it's thought they may already be engaged.

Weding bells certainly seem likely considering Meghan has now quit her steady acting job in Suits and plans to move to the UK.

The new documentary will look in close detail at Meghan's family history - tracing her African-American ancestry and the moment her black father's antecedent arrived in the country.

It will also suggest that Meghan, who found fame after moving her life Los Angeles, has had a similar family life to Harry as they were similar aged when their parents divorced.