creator (368 episodes, 2003-2024)
head writer (246 episodes, 2003-2024)
writer (1 episode, 2006)
head writer (212 episodes, 2003-2022)
writer (199 episodes, 2006-2023)
(234 episodes, 2006-2024)
senior writer (17 episodes, 2023-2024)
writer (197 episodes, 2008-2023)
(232 episodes, 2008-2024)
head writer (17 episodes, 2023-2024)
writer (196 episodes, 2008-2023)
(231 episodes, 2008-2024)
writer (188 episodes, 2014-2023)
(206 episodes, 2014-2024)
writer (190 episodes, 2006-2023)
(198 episodes, 2005-2023)
head writer (2 episodes, 2006-2007)
writer (79 episodes, 2020-2024)
additional writer (52 episodes, 2014-2020)
(133 episodes, 2014-2024)
writer: "next decade summary" (unknown episodes)
writer (99 episodes, 2019-2024)
additional writer (20 episodes, 2019-2020)
writer: newsflashes (unknown episodes)
(120 episodes, 2019-2024)
writer (41 episodes, 2015-2024)
additional writer (34 episodes, 2014-2020)
(77 episodes, 2014-2024)
writer (53 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 (21 episodes, 2022-2024)
writer (16 episodes, 2006-2007)
(16 episodes, 2010-2011)
additional writer (15 episodes, 2015)
(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)