In an interview with Screen Rant, the long-time Love Island narrator gave details on how the process works. Apparently, he's given fully edited episodes to voice over.

"We get the fully edited, the full shebang. So, we go in quite late. We'll go in like two o'clock in the afternoon, and then just basically the show's all about finished, and then we just watch the episode sort of like a viewer would, you know? And then we decide what we think about that and, you know, all those sorts of little bits and bobs, and then we just record it all. It means our day's quite short, which is quite nice," he said.

Interestingly, he wants to have the same viewing experience as the viewers at home. "I deliberately don't watch any outtakes or offcuts or anything like that because I don't really want to know anything that the viewer doesn't know. I think that makes it easier for me."

And if you're wondering whether or not Iain likes listening to his voice... it's as weird of an experience as you'd think it would be.

"My wife watches [Love Island], and sometimes I do watch it with her. It's weird sort of hearing your own voice, but it must be quite annoying for my wife, because obviously she has to then react to all the jokes cause I'm sat with her. Maybe it's easier if we don't watch it together because then she can't be bothered trying to pretend to laugh at stuff, you know?"

Season 4 episodes of Love Island USA premiere on Tuesdays through Sundays on Peacock.