I've heard good things about the BBC series The Office, which is a comedy disquised as a documentary.
It's set in an industrial area somewhat outside of London.
The characters are believable, and the "reality television" approach to the show gives it a unique appeal. A number of the laughs from the show come when a character stares into the camera, at a loss for words to explain to the audience what just happened. Some video clips here.
The series consists of two seasons of six episodes each. They were good enough that I had some difficulty not watching all of these in a row.
I haven't worked in an office quite like the one depicted, but I recognize some of the situations. I suspect I'll be watching these over a few times.
One of my favorite scenerios is when a trainer comes in, and tries to hold a class, while the office manager atttempts to share the wisdom of his experiences at the same time. Their ideas of teamwork clash.
Best television show I've seen in years.