Ok, here goes. For many, many years we lived in Thame, Oxfordshire, adjacent to the Bucks boundary. Lots and lots of episodes off Midsomer Murders were filmed around the area, including Thame itself on occasion. (I think one of the writers/producers was local). So we often had film crews in town.
So, one summer we decide on a holiday in Sweden, a chalet in the woods near Tyreso, south east of Stockholm. Not long after we arrive, exploring the house, as you do, thought we'd educate ourselves with a bit of Swedish television. Flicked through the channels.
Swedish News, Swedish weather, Swedish soap, then, Er, that looks like Midsomer Murders. Blimey, it IS Midsomer Murders! And it's in English with Swedish subtitles! Wowsa!
"How weird is that" says one of the children, "Yeah, and that's The Birdcage". (Pub in town, one of their haunts)
Then an extra walks through the scene and my wife exclaims, "Hey, that's one of my patients, Mary Bucket*!"
*not her real name