The Shaun of the Dead fellas. Also featuring Armando Iannucci, Peter Serafinowicz and Peter Baynham (co writer of Borat). Hear them at their best on the seminal BBC Radio 4 comedy series The 99p Challenge. 4 glorious series herein. http://99p.protoncharging.com/
It regularly has me crying with laughter. Lots of British cultural referrences, but most of it has a pretty broad cross cultural appeal.