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Late Night with Seth Meyers -
Goede Tijden, Slechte Tijden -
The Late Show with Stephen Colbert -
Chronicles of the Sun -
Late Show with David Letterman
It's Always Sunny in Philadelphia
Comedy
2005
8.3
22
The fourth season of It's Always Sunny in Philadelphia, premiered on FX on September 18, 2008. The season contains 13 episodes and concluded airing on November 20, 2008.
