1
Sandi Toksvig considers Wales, whales, and wails with Elis James, Griff Rhys Jones, Kiri Pritchard-McLean and Alan Davies.
2
Sandi Toksvig takes a look at wings and wheels with Aisling Bea, Hank Green, Desiree Burch and Alan Davies.
3
Sandi and Alan take a look at some weaponry with Nish Kumar, Lou Sanders and Roisin Conaty.
4
Sandi Toksvig has a wavey episode of QI with Phil Wang, Sara Pascoe, Tom Allen and Alan Davies.
5
Sandi Toksvig takes a QI look at the Wild West with Alex Brooker, Jo Brand, Eshaan Akbar and Alan Davies.
6
Sandi Toksvig goes a-wooing with Rosie Jones, Larry Dean, Maisie Adam and Alan Davies.
7
Sandi Toksvig wonders who, what and why with Daliso Chaponda, Susan Calman, Cariad Lloyd and Alan Davies.
8
Sandi Toksvig has a weird and wonderful episode of QI featuring Melanie Bracewell, Patrick Kielty, Roisin Conaty and Alan Davies.
9
Julian Clary, Fatiha El-Ghorri, Jimmy Carr and Alan Davies visit Sandi Toksvig's winter wonderland for the QI Christmas special.
10
Sandi Toksvig looks at animals which start with a W with Nabil Abdulrashid, Holly Walsh, Sam Campbell and Alan Davies.
11
Chris McCausland, Zoe Lyons, Ed Byrne and Alan Davies join Sandi Toksvig for a wet and windy episode of QI.
12
QI goes willy-nilly through the letter W as Sandi and Alan are joined by Josh Widdicombe, Catherine Bohart and Russell Kane.
13
Michael Odewale, Cally Beaton and Gyles Brandreth join Sandi and Alan for a bit of QI wordmongery.
14
What’s not to like about Sandi Toksvig’s look at a welter of QI 'whatnots' With Sally Phillips, Andrew Maxwell, Joanne McNally and Alan Davies.
15
A selection of the best moments from the W series of QI, hosted by Sandi Toksvig with Alan Davies and their guests.
16
More of the best moments from the W series of QI, hosted by Sandi Toksvig with Alan Davies and their guests.