It's Always Sunny in Philadelphia
Season 4
8.4
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.
Episodes
Episode 1
Completed
Sep 18, 2008
Episode 2
Completed
Sep 18, 2008
Episode 3
Completed
Sep 25, 2008
Episode 4
Completed
Sep 25, 2008
Episode 5
Completed
Oct 2, 2008
Episode 6
Completed
Oct 2, 2008
Episode 7
Completed
Oct 9, 2008
Episode 8
Completed
Oct 16, 2008
Episode 9
Completed
Oct 23, 2008
Episode 10
Completed
Oct 30, 2008
Episode 11
Completed
Nov 6, 2008
Episode 12
Completed
Nov 13, 2008
Episode 13
Completed
Nov 20, 2008