Portlandia is a new US comedy show set in the Oregon hometown of W+K's head office. Its star and writer Carrie Brownstein (probably best known as guitarist and singer for Sleater-Kinney) used to work at W+K Portland, so she knows whereof she takes the piss.
Of course, there's no need to make a UK sitcom about W+K London. Nathan Barley has already been there.
"Stay cool." (Please note the ironic quotation marks.)