'''The Infinite Monkey Cage''' is a [[Creator/TheBBC BBC Radio 4]] comedy and science series hosted by physicist [[HotScientist Brian Cox]] and comedian [[DeadpanSnarker Robin Ince]], on air since November 2009.

Each show discusses a specific science topic and normally has three guests; two scientists to offer an expert opinion, and third, normally a comedian, to add some levity. Occasionally, as in the case of [[Series/TheArmstrongAndMillerShow Ben Miller]] and [[Creator/DaraOBriain Dara Briain]] (who both studied physics to Phd level), they may have a background in science too.

!!This series includes examples of:

* AmbiguousSyntax: The title of the show, occasionally discussed by the panel. If a cage is infinite, how is it a cage? Or is it a finite cage somehow containing an infinite number of monkeys? Or is it just one single, infinitely huge monkey, and if so, how could there even ''be'' a cage...?
* BerserkButton: Do NOT mention astrology near Brian Cox.
* BritishBrevity: Only six episodes per series, but in series one to three there were only four.
* CatchPhrase: "AND THIS IS OUR PANEL!"
* ExpositoryThemeTune: Having gone for several series without one, there is now a song [[https://www.youtube.com/watch?v=1tdN5uEjnKs specially written]] by [[Creator/MontyPython Eric Idle]].
* TheLastOfTheseIsNotLikeTheOthers: When introducing Sir Creator/PatrickStewart in a episode about "Space Exploration" Robin Ince reels off a long list of his classical and Shakespearean theatre credits before ending with "and some American TV show as well".
* MonkeysOnATypewriter: The inspiration for the title. One listener once wrote in to ask what the ACTUAL dimensions of the hypothetical cage were, since it'd still be an infinitely sized cage if two dimensions were fixed but smaller than a monkey and the final dimension infinitely big.
* RunningGag:
** When a strawberry is considered dead.
** Brian's perfect hair (which may or may not be a wig).
** D:Ream's 1994 song "[[https://www.youtube.com/watch?v=DgMl9qBTBq0 Things Can Only Get Better]]", which featured a young Brian Cox on keyboards.