Illness: Stephen Fry will cure your boredom with fascinating facts about illness in the comedy quiz show. With panellists Jo Brand, Ben Goldacre, Andy Hamilton and Alan Davies. [S]
Inland Revenue: Stephen Fry poses some taxing questions about things that start with 'i'. Joining him are Sandi Toksvig, Al Murray, Dara O Briain and, of course, Alan Davies. [S]
Infantile: Another instalment of the ever-informative comedy quiz show. Big kid Stephen Fry enjoys being childish with guests Ronni Ancona, Dave Gorman, Lee Mack and Alan Davies. [S]
Illumination: The fascinatingly factual quiz show continues. Host Stephen Fry sheds light on the subject of illumination with Jack Dee, Chris Addison, Rich Hall and Alan Davies. [S]
13/15. Sandi Toksvig takes a look at upbringing with Sally Phillips, Josh Pugh, Aaron Simmonds and Alan Davies. Contains some strong language. Also in HD. [S]
Intelligence: More intelligent questions from your genial host Stephen Fry. Joining him this time are guests Jo Brand, David Mitchell, Phill Jupitus - and, of course, Alan Davies. [S]
Idleness: An extra-large portion of the comedy panel show. Stephen Fry takes a lazy look at idleness with Alan Davies and guests Ross Noble, Dara O Briain and Jeremy Clarkson. [S]
8/15. Sandi Toksvig, Rhod Gilbert, Lara Ricote, Ahir Shah and Alan Davies look at some animals beginning with 'U'. Contains some strong language. Also in HD. [S]
3/15. Sandi Toksvig's guests are all in it together for this United episode of QI. With Nabil Abdulrashid, Bill Bailey, Victoria Coren Mitchell and Alan Davies. Contains adult humour. Also in HD. [S]
2/16. Sandi Toksvig hosts a 'ruff and reddy episode in which she takes a look at ruffs and red things with Alan Davies, Tom Allen, Susan Calman and Zoe Lyons. Also in HD. [S]
15/17. Sandi Toksvig is joined by Bridget Christie, Rosie Jones, Cariad Lloyd and Alan Davies to find out about ulex and other obscure U words. Also in HD. [S]
10/17. Sandi Toksvig hosts an 'upsadaisy' episode of QI and is joined by Justin Moorhouse, Emmanuel Sonubi, Holly Walsh and Alan Davies. Also in HD. [S]
5/17. Sandi Toksvig puts the UK-US special relationship under the microscope with Kemah Bob, Alex Edelman, David Mitchell, and Alan Davies. Also in HD. [S]
3/17. Sandi Toksvig, Nabil Abdulrashid, Bill Bailey, Victoria Coren Mitchell and Alan Davies are all in it together for this United episode. Also in HD. [S]
2/14. Sandi Toksvig takes a look at animals that begin with the letter 'T' with Hannah Waddingham, Desiree Burch, Jason Manford, and Alan Davies. Also in HD. [S]
13/14. Sandi takes a look at tubes and tubas in a totally tubular show with Bridget Christie, Sara Pascoe, Deborah Frances White and Alan Davies. Contains adult humour. Also in HD. [S]
8/14. Sandi has fun with some ticks, a bit of tax, a few toes - and a pile of matchboxes that plays tic-tac-toe with Rose Matafeo, Lou Sanders, Ross Noble and Alan Davies. Also in HD. [S]