It's Always Sunny in Philadelphia

Mac is a Serial Killer - S3-E10

Plot hole: Early in the episode, it is mentioned that the serial killer is murdering "Young, attractive blondes", yet at the end of the episode, when the gang finds all the severed heads in the killer's refrigerator, almost none of them are blonde or young, contradicting what had been previously established.

TedStixon

Frank's Brother - S7-E5

Other mistake: In the opening of this episode the screen reads "3:50pm On a Wednesday." When Gino (Frank's Brother) is reading the letters meant for Shadynasty, he says "Meet me at the airport, Friday, at 5:00, Terminal C." The gang and Gina then go along to the airport that very afternoon - a Wednesday - to try and meet Shadynasty and get her and Frank back together. And of course she is there, despite it being a Wednesday, not a Friday.

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Hero or Hate Crime? - S12-E6

Charlie: All right, fine. I voluntarily stepped in the dog shit so that I would smell of dog shit. Happy?
Dennis: Less happy!
Dee: Why would it make me happy?!
Charlie: I was trying to cover up the smell of the skunk that I let spray me so that there would be no questions.
Dennis: Well, now I have more questions!
Dee: Of course you do.

Jon Sandys

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Trivia: In the show, there's a running gag of Charlie being obsessed with the waitress and her constantly rejecting him. In real life Charlie (Charlie Day) and the waitress (Mary Elizabeth Ellis) are married. They married in 2006, although they were dating before the show started.

Bishop73

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