Sick
E1
Sandi Toksvig returns with a "well sick" edition, joined by regular panellist Alan Davies, along with Maisie Adam, Jo Brand and Lee Mack.
Secrets, Spies & Sleuths
E2
Sandi uncovers a stash of secrets with Alan Davies, Daliso Chaponda, Cariad Lloyd and James Acaster.
Shady & Shaky
E3
Sandi Toksvig looks at all things shaky and shady with Alan Davies, Eshaan Akbar, John Barrowman and Victoria Coren Mitchell.
Sideshows, Stunts & Scavenger Hunts
E4
Sandi Toksvig looks at sideshows, stunts and scavenger hunts, with series regular Alan Davies, and guest panellists Gyles Brandreth, Rosie Jones and Nish Kumar.
Sugar & Spice
E5
Sandi Toksvig looks at sugar and spice and all things nice with Alice Levine, Jason Manford, Rose Matafeo and Alan Davies.
Sensational
E6
Let Sandi Toksvig bring you to your senses with Aisling Bea, Roisin Conaty, Jessica Fostekew and Alan Davies.
Spooky
E7
Sandi Toksvig hosts a specially spooky episode of QI with David Mitchell, Richard Osman, Zoe Lyons and Alan Davies.
Seasons Greetings
E8
Sandi Toksvig hosts this year's QI Christmas special with the help of Alan Davies, Bonnie Langford, Joe Lycett and Sally Phillips.
S Animals
E9
Join Sandi Toksvig, Alan Davies, Cally Beaton, Jamali Maddix and Josh Widdicombe for a look at animals which begin with the letter S.
Smörgåsbord
E10
Sandi Toksvig invites you to enjoy a QI smörgåsbord with Jen Brister, Jimmy Carr, Chris McCausland and Alan Davies.
Saints & Sinners
E11
Sandi Toksvig, Alan Davies, Bridget Christie, Mark Watson and Johnny Vegas look at saints and sinners.
Silly Season
E12
Join Sandi Toksvig and panelists Stephen K Amos, Ivo Graham, Holly Walsh and Alan Davies for silly season at QI.
Sun, Sea & Sandi
E13
Join Sandi Toksvig on a trip to the seaside with Ed Gamble, Lou Sanders, Sindhu Vee and Alan Davies.
Sexed-Up
E14
Sandi Toksvig is joined by Ahir Shah, Sara Pascoe, Suzi Ruffell and Alan Davies.
VG: Part I
E15
A selection of the best moments from the S series, with Sandi Toksvig and Alan Davies.
VG: Part II
E16
More of the best moments from Series S of QI, hosted by Sandi Toksvig with Alan Davies.