Series 1
- Adam (11 Sep 03)
- Astronomy (11 Sep 03)
- Aquatic Animals (18 Sep 03)
- Atoms (25 Sep 03)
- Advertising (2 Oct 03)
- Antidotes (9 Oct 03)
- Arthropods (16 Oct 03)
- Albania (23 Oct 03)
- Africa (30 Oct 03)
- Alan (6 Nov 03)
- Arts (13 Nov 03)
- Advent (20 Nov 03)
Series 2
- Blue (8 Oct 04)
- Birds (8 Oct 04)
- Bombs (15 Oct 04)
- Bible (22 Oct 04)
- Bears (29 Oct 04)
- Beavers (5 Nov 04)
- Biscuits (12 Nov 04)
- Bees (19 Nov 04)
- Bats (26 Nov 04)
- Bills (3 Dec 04)
- Beats (10 Dec 04)
- Birth (17 Dec 04)
Series 3
- Campanology (30 Sep 05)
- Cummingtonite (30 Sep 05)
- Common Knowledge (7 Oct 05)
- Cheating (14 Oct 05)
- Cat's Eyes (21 Oct 05)
- Cockneys (28 Oct 05)
- Constellations (4 Nov 05)
- Corby (11 Nov 05)
- Creatures (18 Nov 05)
- Cleve Crudgington (25 Nov 05)
- Carnival (2 Dec 05)
- Combustion (9 Dec 05)
Series 4
- Danger (29 Sep 06)
- Discoveries (29 Sep 06)
- Dogs (6 Oct 06)
- Dictionaries (13 Oct 06)
- Death (20 Oct 06)
- Drinks (27 Oct 06)
- Differences (3 Nov 06)
- Descendants (10 Nov 06)
- Doves (17 Nov 06)
- Divination (24 Nov 06)
- Denial And Deprivation (1 Dec 06)
- Domesticity (8 Dec 06)
- December (15 Dec 06)
Series 5
- Engineering (21 Sep 07)
- Electricity (21 Sep 07)
- Eating (28 Sep 07)
- Exploration (5 Oct 07)
- Europe (12 Oct 07)
- Everything, Etc. (19 Oct 07)
- Espionage (26 Oct 07)
- Eyes And Ears (2 Nov 07)
- Entertainment (9 Nov 07)
- England (16 Nov 07)
- Endings (23 Nov 07)
- Empire (7 Dec 07)
- Elephants (14 Dec 07)
Series 6
- Families (14 Nov 08)
- Fire And Freezing (22 Dec 08)
- Flotsam And Jetsam (9 Jan 09)
- Fight Or Flight (16 Jan 09)
- France (23 Jan 09)
- Fakes And Frauds (30 Jan 09)
- Fingers And Fumbs (6 Feb 09)
- Fashion (13 Feb 09)
- The Future (20 Feb 09)
- Flora And Fauna (27 Feb 09)
- Films And Fame (6 Mar 09)
- Food (20 Mar 09)
Series 7
- Gardens (26 Nov 09)
- Ganimals (3 Dec 09)
- Games (10 Dec 09)
- Geography (17 Dec 09)
- Groovy (24 Dec 09)
- Genius (1 Jan 10)
- Girls And Boys (8 Jan 10)
- Germany (15 Jan 10)
- Gaullimaufrey (22 Jan 10)
- Greats (29 Jan 10)
- Gifts (5 Feb 10)
- Gravity (12 Feb 10)
- Gothic (19 Feb 10)
- Greeks (5 Mar 10)
- Green (26 Mar 10)
- Geometry (2 Apr 10)
Special
- QI VG : Compilation 1 (5 Apr 10)
Special
- QI VG : Compilation 2 (16 Apr 10)
Series 8
- Hodge Podge (17 Sep 10)
- Hanatomy (24 Sep 10)
- Hoaxes (1 Oct 10)
- Humans (8 Oct 10)
- Hanimals (15 Oct 10)
- Happiness (22 Oct 10)
- Horrible (29 Oct 10)
- Hypothetical (5 Nov 10)
- House And Home (12 Nov 10)
- Health And Safety (26 Nov 10)
- Highs And Lows (3 Dec 10)
- Horses (10 Dec 10)
- Holidays (17 Dec 10)
- Hocus Pocus (24 Dec 10)
- Hypnotism (31 Dec 10)
- History (7 Jan 11)