Red hot … The Real Housewives of Potomac. Photograph: Bravo/Paul Gilmore Whether you’re a devout worshipper at the altar of The Real Housewives (like me), or simply aware of it by osmosis, there’s no denying it’s one of reality TV’s most wildly successful franchises. Since it debuted in 2006 with a peek into Orange county’s elite, the franchise now spans more than a dozen US cities and has extended internationally from Sydney to Dubai. Now, nearly 20 years later, London is calling.