|Episodes presented by Jimmy Carr|
|First appearance||2 January 2012|
|Last appearance||18 February 2021|
|Appearances as host||137|
|Episodes with Jimmy Carr as host|
|Guest appearances of Jimmy Carr|
|First appearance||23 February 2004|
|Last appearance||27 February 2004|
|Appearances as guest||5|
|Episodes with Jimmy Carr as guest|
Jimmy Carr is the presenter of 8 Out of 10 Cats Does Countdown.
He appeared as a guest on the main series of Countdown in 2004.
In his role as the presenter of what is colloquially known as "Catsdown", he has presented all but one episode of the show's run, which was a women's suffrage special, and as such he was replaced by Katherine Ryan.