| 2025-03-30 | Music player button |
| 2022-01-27 | What two sets of dots within double lines indicate, in musical scores |
| 2017-12-29 | Do over |
| 2015-12-02 | Previously shown episode |
| 2014-10-16 | What three-letter words do in five answers in this puzzle |
| 2014-06-22 | Shampoo instruction |
| 2013-01-22 | "___ after me ..." |
| 2011-10-19 | Already-aired episode |
| 2011-08-19 | Second run |
| 2010-02-14 | End of shampoo instructions, often |
| 2009-10-08 | Last word in shampoo instructions |
| 2007-08-14 | Parrot |
| 2004-05-01 | It's been seen before |
| 2003-06-22 | Echo |
| 2002-04-24 | Shampoo bottle instruction |
| 1999-10-24 | Kind of offender |
| 1998-10-11 | Meaning of two dots and a bar, in music |
| 1997-08-19 | Say again |
| 1995-10-02 | Iterate |