History Awesome / ItsAlwaysSunnyinPhiladelphia

* Assuming Dennis really is a SerialKiller, the fact that he has gone this long without being caught definitely qualifies.
** Given the things the gang has done it's a miracle any of them haven't been arrested for their actions.

* When the gang is trapped in the serial killer's apartment with said killer at the end of the episode, Frank just begins revving the chainsaw as it cuts to the credits. KickTheSonOfABitch, indeed.

* After leaving Charlie to carry his father's body, the gang finds themselves in a bar commiserating about their terrible trip and talking about how they wish they'd never have to see each other again. When the discussion starts escalating, they get shushed by The Waitress.

'''Frank''': [[IAmTheNoun We]] ''[[IAmTheNoun are]]'' [[IAmTheNoun America]], sweetheart! And we carry our country with us wherever we go! Because we love her! And when you love someone, you can't bear to leave them behind! Not ever!

* Mac putting his hand between Dee's legs and *lifting her off the ground *. While everyone else at the seminar was horrified, Charlie was impressed and Dee herself admits it was amazing.

* Dennis has a big one in this episode for [[GenreSavvy correctly figuring out]] that Trevor was doing a whole ''Literature/DangerousLiaisons''-type stunt with Mac and Dee, who was filming them during embarrassing moments and then showing those embarrassing clips to his frat buddies. He then takes the stage as the [=TaftCo=] gala with video evidence that Trevor had given Mac [[WhiteCollarCrime insider trading tips]] prior to the announcement that the company was going public, this siccing the SEC on [=TaftCo=] and likely the entire family as well.

[[folder:Meta]]
* Creator/DannyDeVito joining the show a season in, working with actors 30 years younger than him and managing to become a vital part of the cast. Have respect idiots, the man is a goddamn legend.
* In the first season, Dee was pretty much TheStraightMan than the rest of the Gang and often served as [[WomenAreWiser the voice of reason]] when they did ridiculous things. But Kaitlin Olson, who plays Dee, knew that this made her character far less funny than the rest of the group. Olson actively campaigned to make Dee just as horrible as Charlie, Mac, and Dennis; the writers listened and, in the second season onward, made her character equally (or perhaps more!) selfish, cruel, and prone to breaking the law. It's made her character a pathetic mess, but it's awesome that Olson was willing to play TheUnfavorite to make sure that Dee could be funny. And it works.
* How did Creator/CharlieDay get the role of Newt in Film/PacificRim? Creator/GuillermoDelToro saw [[https://www.youtube.com/watch?v=L2MvHuflizQ his monologue]] from "Charlie Kelly: King of the Rats".
* The show (despite being a sleeper hit and airing on a non-major cable network) was funny enough to attract the attention of writers from another television series, who asked if they could write an episode. The result--"Flowers for Charlie"--is hilarious, and remembered as one of the best in the show. But who were the writers that the irreverent program managed to wow into briefly joining the creative team? The show-runners behind a little series called ''Series/GameOfThrones.'' That's right--one of the biggest-budget, highest-ratings-getting shows in television history took the time to write an episode of ''It's Always Sunny.'' Say what you will about the humor, but ANY writers who can do that deserve major kudos.
* Mac Finds His Pride: Rob [=McElhenney=] has no dancing experience at all and trained for this. This is made more awesome with the decision to include rain in the performance as everything became slippery.
* After the premiere of "The Gang's Still in Ireland", Irish fans immediately began praising how good Charlie Day's [[https://www.youtube.com/watch?v=NHt4_QAG640 Gaelic diction and pronunciation was]], with [[SurprisinglyGoodForeignLanguage many joking that he speaks it better than most natives]].
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