20 Things You Didn't Know About It's Always Sunny In Philadelphia

6. There's An Unaired Season Six Episode, "The Gang Gets Successful"

It's Always Sunny In Philadelphia
FX

An episode was originally written and filmed for season six called "The Gang Gets Successful", yet which was never actually aired on FX and to date hasn't ever been released to the public.

However, much of the episode's material was ultimately repurposed into season seven's "How Mac Got Fat," allowing the episode to show "new" material of a thinner Mac before his weight gain.

Footage from the "lost" episode was even aired on a promo for the sixth season, though for reasons unknown it never made it to air in its original form. Clearly, though, they found a better use for the bulk of the material.

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Stay at home dad who spends as much time teaching his kids the merits of Martin Scorsese as possible (against the missus' wishes). General video game, TV and film nut. Occasional sports fan. Full time loon.