Videos: Trailers, Teasers, Featurettes
The fifth season of It's Always Sunny in Philadelphia, premiered on FX on September 17, 2009. The season contains 12 episodes and concluded airing on December 10, 2009.
Streaming, rent, or buy It's Always Sunny in Philadelphia – Season 5:
Currently you are able to watch "It's Always Sunny in Philadelphia - Season 5" streaming on Netflix or buy it as download on Apple iTunes, Google Play Movies, Amazon Video, Microsoft Store.