QI is a comedy/quiz show which is aired on the BBC. The questions are near impossible. Right answers are rewarded with points and wrong (and often obvious) answers cause a deduction of 10 points and the answerer is ridiculed by an alarm. Points are also awarded for interesting facts.
Stephen Fry hosts and, along with Alan Davies, appears weekly and they are joined by guests such as Bill Bailey, Phil Jupitus, Jo Brand, Jimmy Carr, Rich Hall, Clive Anderson, Jeremy Clarkson etc... Each series covers topic beginning with the corresponding letter of the alphabet, series 1 being A, 2 being B and so on. The show is currently nearing the end of its 5th season.