creator (347 episodes, 2003-2023)
head writer (240 episodes, 2003-2024)
writer (1 episode, 2006)
head writer (212 episodes, 2003-2022)
writer (199 episodes, 2006-2023)
(228 episodes, 2006-2024)
senior writer (11 episodes, 2023-2024)
writer (197 episodes, 2008-2023)
(226 episodes, 2008-2024)
head writer (11 episodes, 2023-2024)
writer (196 episodes, 2008-2023)
(225 episodes, 2008-2024)
writer (188 episodes, 2014-2023)
(200 episodes, 2014-2024)
writer (190 episodes, 2006-2023)
(198 episodes, 2005-2023)
head writer (2 episodes, 2006-2007)
writer (73 episodes, 2020-2024)
additional writer (52 episodes, 2014-2020)
(127 episodes, 2014-2024)
writer: "next decade summary" (unknown episodes)
writer (93 episodes, 2019-2024)
additional writer (20 episodes, 2019-2020)
writer: newsflashes (unknown episodes)
(114 episodes, 2019-2024)
additional writer (34 episodes, 2014-2020)
writer (35 episodes, 2015-2024)
(71 episodes, 2014-2024)
writer (47 episodes, 2021-2024)
additional writer (30 episodes, 2014-2018)
(40 episodes, 2006-2019)
writer (5 episodes, 2006-2019)
(39 episodes, 2014-2018)
(30 episodes, 2010-2012)
additional writer (13 episodes, 2016-2020)
writer (9 episodes, 2018-2023)
writer (8 episodes, 2018-2023)
writer (16 episodes, 2006-2007)
(16 episodes, 2010-2011)
additional writer (15 episodes, 2015)
writer (15 episodes, 2022-2024)
(14 episodes, 2012)
additional writer (14 episodes, 2015)
additional writer (1 episode, 2017)
additional writer (10 episodes, 2017)
additional writer (6 episodes, 2014)
additional writer (8 episodes, 2014-2015)
(7 episodes, 2003-2006)
additional writer (6 episodes, 2015)
(5 episodes, 2003-2006)
(4 episodes, 2003-2004)
(3 episodes, 2004)
(3 episodes, 2005-2006)
additional writer (3 episodes, 2016-2018)
(2 episodes, 2005-2006)
writer (2 episodes, 2006-2007)
(2 episodes, 2010-2018)
additional writer (1 episode, 2018)
(2 episodes, 2010-2011)
additional writer (2 episodes, 2014)
additional writer (2 episodes, 2016)
additional writer (2 episodes, 2017)
additional writer (2 episodes, 2019)
(1 episode, 2004)
additional writer (1 episode, 2006)
(1 episode, 2006)
writer (1 episode, 2007)
writer (1 episode, 2008)
(1 episode, 2010)
additional writer (1 episode, 2014)
additional writer (1 episode, 2015)
(1 episode, 2016)
writer (1 episode, 2017)
guest writer (1 episode, 2017)
(1 episode, 2018)
writer (1 episode, 2022)
creator (unknown episodes)