It really depends on where you are. America's states are analogous to European countries, albeit with a common language. The cultures are very, very different.
Indeed, but Britain is probably the other extreme. I believe there is only one country that could've produced magnificent material such as Monty Python or Fawlty Towers ;).
But what country could have produced "Airplane!", or "O Brother Where Art Thou?"
You could say that something like "Seinfeld" (and "Curb Your Enthusiasm") is more the product of a very unusual subculture (in fact, this is the basis for much of the humor, how poorly new yorkers fit in the rest of US culture), but keep in mind Seinfeld had the highest ratings of any sitcom in US history, so the appeal is obviously very broad.
To be clear I wasn't talking about humor in media - of which there are a lot of excellent examples, but the amount of humor that seems to be part of day to day life.
Incidentally, I wouldn't regard Monty Python as being very representative of "natural" British humor - I'd probably suggest Al Murray in his "Pub Landlord" persona to be far more like the comedy you are likely to encounter in real life (or Frankie Boyle for us Scots).
The main body of the news report tends to use the renarrative correctly - but sometimes, again, it is intentionally avoided. (...) This is because, due to its ambiguity, the renarrative in such cases could be perceived as a passing of judgement or expression of doubt by the reporter...
It really shows up in British vs American versions of "The Office" television show. The American boss is more likeable than Ricky Gervais, and the show's tone is cheerier.
I think that's also because the American show was intended to last longer. Ricky Gervais' character was truly repellent, and probably wouldn't have been tolerable for 7 seasons.
I've noticed people from the Indian subcontinent tend to be a lot more sarcastic than Americans. I wonder if it is a relic of the British colonization.
At the height of British occupation , there were not more than 1700(!) British people at the same time on the Indian subcontinent. Which itself is a fantastic testament to the British Raj's bureaucratic machinery. The English education was an instrument in creating that machinery.