Charlie's false son is now the same age as Charlie Day when the first season aired. : r/IASIP

Philadelphia (1993) - News - IMDb

Are the actors in Letterkenny and It's Always Sunny in Philadelphia similar? Would you say both TV show sitcoms are similar? - Quora

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It's been 1 year since Season 15 aired. Do you think this season aged well? What was your favorite part of Season 15? : r/IASIP

The Creeping Progressiveness of 'It's Always Sunny in Philadelphia

Then and Now 18 Years of Sunny : r/IASIP

Charlie's false son is now the same age as Charlie Day when the first season aired. : r/IASIP

Binge-Watchers Podcast - Podcast

After re-watching the first season, I realized that Mac is the only character that hasn't changed since the first season. Dennis and Dee were shockingly normal, Charlie was just dumb, but Mac

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