In my experience in the UK, I don't have to watch a documentary to run into the freaks -- they always seem to be well represented in every store, checkout line, party of a friend, workplace. It's a lot easier to run into strange people with whom ten minutes of conversation reveals that they don't seem "quite right," in the UK, than in the US. Yes there are normal people here, but even some of them seem off.
Hmmmm....seems to work both ways! We were talking at work the other day how anti-Americanism is so acceptable here. This was after I overheard a colleague talking about 'annoying Americans'. I'm fairly certain she's never even been. I love The Daily Show, but it doesn't do anyone any favors in it's portrayal of Americans.
I like Stephen Fry and hopefully it's a good show!