20 Things You Didn't Know About It's Always Sunny In Philadelphia

20. It's The Longest-Running Live-Action Sitcom EVER

Tough though it might be to believe, It's Always Sunny is imminently due to become the longest-running live-action sitcom in American TV history. Yup.

With the airing of its 14th season last year, it tied the record with The Adventures of Ozzie and Harriet, but given that the cast is already hard at work writing a 15th season expected to air next year, it will break that record by 2021.

For a show that's always been more of a cult fave than a mainstream success, it's one hell of an impressive record, especially with 154 episodes produced to date.