The BBC 6 O'Clock News was interviewing passers-by about the controversial proposals to expand Heathrow Airport. But one of the passers-by looked oddly familiar...
We've gone back and checked the live feed - and yes, that is indeed Henry Winkler. Complete with shopping bag.
The BBC's James Landale also confirmed that it was The Fonz.
And while it's not quite as much fun, the BBC knew did know who they were interviewing - the segment was introduced with the suggestion that Heathrow expansion would mean "happy days" for some travellers...