"Do you have television in England?" an American lady once asked Mrs Brit.
We Brits (and Europeans and Australians and everybody else) like to have a laugh at the ignorance bred by America's media isolationism.
But then, when they can kick our arses into oblivion whenever they like, and given that we Brits are, essentially and sensibly, America's poodles, it is important to our psychologies that we can have a good laugh at things like this.
It's like Ahmadinejad 'choosing' to release the sailors.