- Extras
- 2006-01-03 - The Joy of Gibberish - Issued on CD with Series 2
- 2007-12-26 - Current Puns - Issued on CD with Series 1
- Series 1
- s01e01 - 2008-08-25 - Metaphors
- s01e02 - 2008-09-01 - Quotation
- s01e03 - 2008-09-08 - Cliche
- Series 2
- s02e01 - 2009-08-11 - So Wrong It's Right
- s02e02 - 2009-08-18 - Speaking Proper
- s02e03 - 2009-08-25 - Hallo!
- Series 3
- s03e01 - 2010-08-11 - The Trial of Qwerty
- s03e02 - 2010-08-18 - He Said, She Said
- s03e03 - 2010-08-25 - Accentuate the Negative
- s03e04 - 2010-09-01 - Future Conditional
- s03eSP - 2010-12-28 - Word Games
- Series 4
- s04e01 - 2011-12-11 - The Mouth
- s04e02 - 2011-07-18 - Brevity
- s04e03 - 2011-07-25 - Persuasion
- s04e04 - 2011-08-01 - Class
- Series 5
- s05e01 - 2012-08-16 - Colour
- s05e02 - 2012-08-23 - Intonation
- s05e03 - 2012-08-30 - Conversation
- s05e04 - 2012-09-06 - The Story of X
- Series 6
- s06e01 - 2013-08-26 - Rhetoric Rehabilitated
- s06e02 - 2013-09-02 - Spelling
- s06e03 - 2013-09-09 - Words Without End
- s06e04 - 2013-09-16 - WTF
- Series 7
- s07e01 - 2014-08-04 - Magic
- s07e02 - 2014-08-11 - Capital Punishment
- s07e03 - 2014-08-18 - Reading Aloud
- s07e04 - 2014-08-25 - Plain English
- Series 8
- s08e01 - 2015-08-12 - Words Fail Me
- s08e02 - 2015-08-18 - Talking About the Weather
- s08e03 - 2015-08-25 - Do You Promise Not to Tell
- s08e04 - 2015-09-01 - English Plus One
- Series 9
- s08e04 - 2015-09-01 - Let's Get Physical
- s09e02 - 2017-02-12 - The Story of Oh!
- s09e03 - 2017-02-19 - English Upside Down
- s09e04 - 2017-02-26 - That Way Madness Lies
- Series 10
- s10e01 - 2019-08-06 - Order!
- s10e02 - 2019-08-13 - You Must Remember This
- s10e03 - 2019-08-20 - The Doolittle Factor
- s10e04 - 2019-08-27 - Signs of the Times