Charlotte shields-rossi | a&e editor After 20 years on air and 18 seasons under their belt, “It’s Always Sunny In Philadelphia” has changed a lot. But with the return of a 10-episode season, plenty of corpse desecration and yet another coming out scene from Mac, it seems as though the longest-running live action sitcom has returned to its roots. “It’s Always Sunny In Philadelphia” follows … Continue reading Longest running live sitcom returns for 18th season