This is one of Frank Reynold's best quotes because the introduction of rum ham is a legendary moment. Yet another hilarious episode of It's Always Sunny, "The Nightman Cometh" features a musical ...

FX released the trailer for "It's Always Sunny in Philadelphia" Season 17 on Wednesday. The new season premieres July 9.

As he does so, the more hilariously iconic his quotes seem to become, to the point where many people who don't even watch It's Always Sunny are familiar with some of Frank's more immortal lines.

To know It’s Always Sunny in Philadelphia is to love It’s Always Sunny in Philadelphia. The first TV script I ever wrote was an It’s Always Sunny in Philadelphia spec. Back in 2007 ...