Community: 15 Insane Details You Definitely Missed
12. 303 Or 304?
There will be little argument among fans that season three's "Remedial Chaos Theory" is one of Community's all-time greatest episodes, as it explores Troy and Abed's (Danny Pudi) housewarming party through many different possible timelines.
Though the episode was ultimately the fourth of the season, it was actually filmed as the third and only pushed back due to visual effects, editing, and reshoots being incomplete in time for the air date.
NBC agreed to adjust the episode order, and Dan Harmon then swiftly moved to include a last-minute spoken reference to the change.
The episode's opening shot is of Troy and Abed's front door which bears the apartment number "303," and Britta and Annie can be heard discussing whether their apartment is in fact 303 or 304. Get it?
If you're unaware of the episode's production troubles it sounds like perfectly ordinary incidental dialogue, but if you're in the know, it's genius.