Fans of It’s Always Sunny in Philadelphia may have noticed a tribute to someone not involved with the series at the end of the Season 17 premiere last week. At the end of the new episode, “The Gang F* ...

The writer of a new history on It’s Always Sunny in Philadelphia reveals what’s kept the show going strong for two decades.

Danny DeVito has played the deranged con artist Frank Reynolds on It’s Always Sunny in Philadelphia. The greedy, gun-toting character has tortured and mercilessly exploited his (legal, not biological) ...