She continued: “Is there mass appeal? I don’t think so. Fans care more about royal drama than this.
“This is elite and it’s about elite, global players. It’s about grit to glamour. I really don’t think people relate to this.”
Ms Chard added: “I am a photographer and I have shot many polo games. It’s not that exciting. It’s a lavish lifestyle that people, the general person, won’t be used to.
“It costs millions and millions of pounds to actually enter the sport. We know there is an element of charity to this.”
The series is produced by the Sussex couple’s Archewell Productions and Harry and Meghan serve as executive producers.
They also make an appearance in episode five, filmed at the Royal Salute Polo Challenge staged in aid of Sentebale, in Florida in April, with the pair shown sharing a kiss on the podium.
POLO is the Sussexes’ first documentary since Heart Of Invictus, which aired some 16 months ago and followed a group of service members on their road to the Invictus Games, the Paralympic-style sporting competition set up by Harry in 2014 for injured and sick military personnel and veterans.
It followed Live To Lead, about leaders who have dedicated themselves to social justice, in 2022, and before that, the couple’s controversial six-part Harry & Meghan documentary.
Another non-fiction series for Netflix, produced by Meghan, on “the joys of cooking, gardening, entertaining and friendship” is in production.