Season 8 | Thursday : October 11th : 10/9c | FX Season 10 Air dates The tenth season of It's Always Sunny in Philadelphia aired between January. It's Always Sunny In Philadelphia Season 3 Blooper Reel The eighth season of the American comedy television series It's Always Sunny in Philadelphia premiered on FX on October 11, 2012. The season consists of 10 episodes. It's Always Sunny in Philadelphia is an American television sitcom that premiered on FX on August 4, 2005, and moved to FXX beginning with the ninth season. It's. It's Always Sunny in Philadelphia is an FX sitcom created by Rob McElhenney about four friends (played by McElhenney, Charlie Day, Glenn Howerton and Kaitlin Olson. GET INFORMED. Industry information at your fingertips. GET CONNECTED. Over 200,000 Hollywood insiders. GET DISCOVERED. Enhance your IMDb Page. Go to IMDbPro » 'It's Always Sunny in Philadelphia' Cast Talks Two More Seasons and No Emmy Love It's Always Sunny in Philadelphia: Watch full length episodes & video clips. Read the latest It's Always Sunny in Philadelphia episode guides & recaps, fan reviews. With Charlie Day, Glenn Howerton, Rob McElhenney, Kaitlin Olson. Four young friends with big egos and slightly arrogant attitudes are the proprietors of an Irish bar.