| 2025-12-28 | Struggles with sibilant sounds |
| 2025-07-24 | Speech therapists' targets |
| 2021-06-17 | "Frontal" or "lateral" speaking features |
| 2020-03-31 | Has trouble with S's |
| 2020-01-12 | Imitates Daffy Duck, in a way |
| 2019-09-28 | Jobs for speech coaches |
| 2019-01-09 | Speaks like Sylvester |
| 2018-07-19 | Targets for speech therapists |
| 2017-01-11 | Talks like Sylvester |
| 2017-01-01 | Imitates Sylvester the Cat |
| 2016-05-04 | Imitates Sylvester the Cat |
| 2011-03-17 | Problems for orators |
| 2010-08-26 | Talks like Daffy |
| 2010-01-31 | Features of Castilian speech |
| 2008-02-24 | Is afflicted with sigmatism |
| 2005-06-13 | Thpeakth like thith |
| 2002-02-10 | Does a Sylvester impression |
| 2001-11-26 | Sounds worked on by speech therapists |
| 2001-11-04 | Speech difficulties |
| 1998-05-18 | Has speech difficulties |
| 1997-04-27 | Says a myth that's amiss? |