QI XL - Season 4

Season 4
I
Episodes

I-Spy
Stephen Fry hosts the mind-expanding quiz in which the aim is to be interesting. Stephen plays I-Spy with Sandi Toksvig, Lee Mack, Jimmy Carr and Alan Davies.

International
Stephen Fry hosts the mind-expanding quiz in which the aim is to be interesting. Stephen asks unanswerable questions with an international flavour. With Jack Dee, David Mitchell, Bill Bailey and Alan Davies.

Imbroglio
Stephen Fry investigates an imbroglio of issues with John Bishop, Frank Skinner, Sean Lock and Alan Davies.

Indecision
Stephen Fry comes over all indecisive. With Phill Jupitus, Rich Hall, Jimmy Carr and Alan Davies.

Invertebrates
Stephen Fry looks at insects and other invertebrates. With Sarah Millican, Jimmy Carr, Johnny Vegas and Alan Davies.

Inventive
Stephen Fry waxes inventive with Nina Conti, Sean Lock, Bill Bailey and Alan Davies.

Incomprehensible
Stephen Fry considers some incomprehensible questions with Sue Perkins, Ross Noble, Professor Brian Cox and Alan Davies.

Inequality
Stephen Fry addresses inequality and injustice with Sandi Toksvig, Clive Anderson, Henning Wehn and Alan Davies.

Illness
Stephen Fry investigates illness with Jo Brand, Ben Goldacre, Andy Hamilton and Alan Davies.

Inland Revenue
Stephen Fry asks some taxing questions about things that start with I, with Sandi Toksvig, Al Murray, Dara O'Briain and Alan Davies.

Infantile
Stephen Fry comes over all infantile with Ronni Ancona, Dave Gorman, Lee Mack and Alan Davies.

Illumination
Stephen Fry casts light on the subject of illumination. With Jack Dee, Chris Addison, Rich Hall and Alan Davies.

Intelligence
Stephen Fry asks some intelligent questions. With Jo Brand, David Mitchell, Phill Jupitus and Alan Davies.

Ice
In a special Christmas edition of the quiz where points are awarded for quite interesting answers, Stephen Fry is joined by Ross Noble, Sean Lock, Brian Blessed and Alan Davies.

Immortal Bard
In a special edition of the quiz for the Cultural Olympiad, Stephen Fry investigates the Immortal Bard with Sue Perkins, Bill Bailey, David Mitchell and Alan Davies.

Idleness
Stephen Fry takes a lazy look at idleness with Ross Noble, Dara Ó Briain, Jeremy Clarkson and Alan Davies.
Recently Updated Shows

Expedition Files
In the all-new series Expedition Files, adventurer Josh Gates travels through history on a search to uncover new evidence and answers to the world's most captivating and unexplained mysteries. Each episode of Expedition Files explores compelling true stories that defy explanation, offering stunning revelations and surprising new insights.

The Trades
Set in a blue-collar community where the high stress of working in a refinery is balanced by the comedic high-wire antics of its plant workers, The Trades centres around Todd, a pipefitter, and his sister and roommate, Audrey, who follows in her big brother's footsteps pursuing a career in the trades as a carpenter, just like their father Rod.

Big Mood
Best friends Maggie and Eddie have lived in each other's pockets for ten years, through thick, thin, and multiple challenging eyebrow trends. But with the rest of their lives looming, careers hanging in the balance, and Maggie's bipolar disorder making an unwelcome return to form, Eddie begins to question whether this friendship is really in their best interests.
It's a pivotal point in both their lives, bringing to the surface those all-important questions – could sleeping with your former History teacher be the key to happiness? Is a basement Rat Hotel a functional alternative to pest control? How do you stop your new psychiatrist giving you worry dolls? With their twenties behind them, Maggie and Eddie's relationship faces the future – can it survive?

Survivor
Eighteen to twenty castaways will compete against each other on Survivor. All castaways will compete to outwit, outplay, outlast and ultimately be crowned Sole Survivor.
