Plot: The sixth season of It's Always Sunny in Philadelphia, premiered on FX on September 16, 2010. The season contains 14 episodes and concluded airing on December 9, 2010 with the hour-long Christmas special

It's Always Sunny In Philadelphia - Season 6
First Episode Aired On:
Thursday, September 16 2010
14 years ago
Thursday, September 16 2010
14 years ago
Last Episode Aired On:
Thursday, December 16 2010
14 years ago
Thursday, December 16 2010
14 years ago
Number of Episodes: 13