This It's Always Sunny in Philadelphia arte dos fãs might contain
sinal, cartaz, texto, quadro-negro, assinar, quadro de giz, rua, cena da cidade, ajuste urbano, cenário urbano, cena de rua, cidade, and urbana definindo.
It's Always Sunny in Philadelphia's creators have a different hidden message each season which plays after the credits of each episode. The audio is just simply reversed. I've compiled seasons 1-7 (and the natal episode) here.