Premise: It 's Always Sunny in Philadelphia is an American television black comedy sitcom that premiered on FX on August 4 , 2005 . On April 1 , 2016 , the series was renewed for a thirteenth and fourteenth season , which will tie it with The Adventures of Ozzie and Harriet as the longest running live-action sitcom in American TV history .
Hypothesis: It's Always Sunny in Philadelphia is a sitcom.
Label: ENTAILMENT