Series C
1. Campanology
First broadcast: Friday 30th September 2005
With Rob Brydon, Bill Bailey and Rich Hall.
2. Cummingtonite
First broadcast: Friday 30th September 2005
With Doon Mackichan, Arthur Smith and Andy Hamilton.
3. Common Knowledge
First broadcast: Friday 7th October 2005
With Rory McGrath, Jimmy Carr and Sean Lock.
4. Cheating
First broadcast: Friday 14th October 2005
With Jeremy Clarkson, Alexander Armstrong and John Sessions.
6. Cockneys
First broadcast: Friday 28th October 2005
With Phill Jupitus, Bill Bailey and Rory McGrath.
7. Constellations
First broadcast: Friday 4th November 2005
With Sean Lock, Rich Hall and Jeremy Clarkson.
8. Corby
First broadcast: Friday 11th November 2005
With David Mitchell, Bill Bailey and Phill Jupitus.
9. Creatures
First broadcast: Friday 18th November 2005
With Helen Atkinson-Wood, Andy Hamilton and Bill Bailey.
10. Cleve Crudgington
First broadcast: Friday 25th November 2005
With Mark Steel, Clive Anderson and John Sessions.
11. Carnival
First broadcast: Friday 2nd December 2005
With Clive Anderson, Jo Brand and Phill Jupitus.
12. Combustion
First broadcast: Friday 9th December 2005
With Dara O'Briain, Phill Jupitus and Bill Bailey.
Series C Products
A Quite Interesting Advert
An advert for Series C of QI.
Warning: Contains material that some may find offensive.