Candid footage shows Harry and Archie’s reflection in the window, while Megan speaks earnestly about the issues that matter to herself and the Duke.
Following the film, fans took to social media to comment on the adorable father-son moment, with one fan saying it was their "favourite" part of the documentary.
“Meghan is saying something important but I can't keep my eyes off the duo in the left side corner.....Harry and Archie,” another person wrote.
A third person added: “Prince Harry rocking his mini me! Love it!”
When asked how the five-month-old prince had adjusted to being on the road with his parents, Meghan simply said he was doing “really well” and “sleeping really well”.
The 38-year-old then discussed how Archie could fondly look back on the experience in the future, before she was asked to comment on being in a “mixed race” relationship.
“I would hope the world would get to a point where people just see us as a couple who are in love,” she began.
“I don’t wake up every day and identify as being anything other than who I have always been. I’m Meghan and I married this incredible man.
“This to me is just part of our love story,’ she said.
Harry and Meghan: An African Journey will air on Channel 10 at 7.30pm.