It's Always Sunny in Philadelphia is an American comedy television series created by Rob McElhenney, and developed by McElhenney and Glenn Howerton, who also serve as writers and executive producers with Charlie Day. The series premiered on August 4, 2005, on FX, and moved to its sister network FXX beginning with its ninth season. The series follows "The Gang", a group of five narcissistic underachievers: twins Dennis (Howerton) and Deandra "Sweet Dee" Reynolds (Kaitlin Olson), their friends Charlie Kelly (Day) and Ronald "Mac" McDonald (McElhenney), and their legal father Frank Reynolds (Danny DeVito), who run Paddy's Pub, a run-down bar in South Philadelphia. On December 10, 2020, the series was renewed through an eighteenth season, making it the longest-running live-action comedy series in American television history in terms of seasons. The 16th season premiered on June 7, 2023. The seventeenth season will include a crossover with Abbott Elementary.

Series overview

Episodes

Season 1 (2005)

Season 2 (2006)

Season 3 (2007)

Season 4 (2008)

Season 5 (2009)

Season 6 (2010)

Season 7 (2011)

Season 8 (2012)

Season 9 (2013)

Season 10 (2015)

Season 11 (2016)

Season 12 (2017)

Season 13 (2018)

Season 14 (2019)

Season 15 (2021)

Season 16 (2023)

Season 17

The season is expected to consist of eight episodes, and premiere in 2025. One episode is set to conclude a crossover event that will begin in the fourth season of the ABC comedy series Abbott Elementary.