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