How It's Always Sunny in Philadelphia, the Longest-Running Sitcom on the Air, Keeps Up | Vanity Fair
The Longest-Running Comedies on TV, From Seinfeld to the Simpsons
Tonight, Sunny will become the longest running live action sitcom in TV history" - except for ones made outside the USA that ran much longer. : r/ShitAmericansSay
The longest-running sitcoms in the UK
It's Always Sunny in Philadelphia renewed for Seasons 13 and 14. One more and it'll be the longest-running live-action sitcom.
It's Always Sunny... is now the longest-running live-action comedy series in TV history