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.
[3] As of July 19, 2023,[update] 170 episodes of It's Always Sunny in Philadelphia have aired, concluding the sixteenth season.
A video disclaimer on the Blu-ray release indicates it was not filmed in high definition, but was upconverted.