"It is small wonder that American tourists are reportedly staying away from good old London town, what with its reputation for fires, plagues, rippers, and cabbies who are experts on their home-country politics. There is evidence that some Americans still think that London is populated by Beefeaters, pensioners who wear red and live in Chelsea, and chimney sweeps who say things like ‘Luv a duck’ and ‘Gor blimey’ in a Dick van Dyke sort of way."
I defy you to find any Americans who know the part of London where the pensioners who wear red reside. In fact, I'm quite the Anglophile and I had no idea what this wearing red business meant until I googled it and found this.
Time elapsed since premiere of Mary Poppins:
Time elapsed since someone mentioned D.V.D.'s accent: