The D Series had topics beginning with D in every round except General Ignorance. This is continued throughout the show's run.
Episodes 
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Guest Panellists Edit
| QI Series and Episodes | ||||||
|---|---|---|---|---|---|---|
| A | B | C | D | E | F | |
| 1 • 2 • 3 • 4 5 • 6 • 7 • 8 9 • 10 • 11 • 12 | 1 • 2 • 3 • 4 5 • 6 • 7 • 8 9 • 10 • 11 • 12 | 1 • 2 • 3 • 4 5 • 6 • 7 • 8 9 • 10 • 11 • 12 | 1 • 2 • 3 • 4 5 • 6 • 7 • 8 9 • 10 • 11 • 12 | 1 • 2 • 3 • 4 5 • 6 • 7 • 8 9 • 10 • 11 • 12 | 1 • 2 • 3 • 4 5 • 6 • 7 • 8 9 • 10 • 11 • 12 | |
