1. Mr. Huxtable’s Sweater
One of the many things Bill Cosby is known for is rocking tragic, extremely loud and incredibly gross sweaters that resemble the color patterns of a fruity cereal eater’s vomit. When Malcolm-Jamal Warner (who played Cosby’s son on The Cosby Show) guest starred, he wore a similar looking pullover that he states he got from his father.
2. The Three Year Punch Line
We know how it works, say “Beetlejuice” three times and he’ll appear. Well Community said the name one time in each of the first three seasons. On the third occasion take a gander in the background.
3. In/On Vending Machines And Refrigerators
During the first season of Community, Troy is stuck in a vending machine at one point. In an episode two seasons later, a fridge covered in various stickers includes one of Troy’s face that’s placed exactly where Troy was in his vending machine mishap.
4. Episode Swap
The episode this scene occurs in was initially meant to be aired third in season three. It ended up airing fourth, which is what the door numbers are referring to.
5. Monkey Business
Annie’s Boobs, the kleptomaniac monkey, can be seen taking Annie’s pen (at :02), which was found later on in his stash of stolen belongings.
6. Danny Pudi On Cougar Town
Community’s Abed (played by Pudi) once stated that he was an extra on an episode of Cougar Town. That crossover came to fruition on an episode of the ABC series as he played the role of a noticeable member of the background cast.
7. Abed’s Background Storyline
In the history of television has a series ever given a main character an entire storyline spent amongst the background extras? Abed has a full episode’s worth of action in the shadows, starring in his own subplot.
8. Latvian Independence Parade
This episode aired on November 18, 2010 – which just so happened to be the actual date of Latvian Independence Parade in real life.
9. Foreshadowing Robocop
As Abed scans the building in robot mode there are descriptions of events that occur in past and future episodes being displayed on the sides.
10. Tiny Chang
[youtube http://www.youtube.com/watch?v=T-sanS6Y6cw%5DIf you look very closely, you’ll spot the little model of Chang on the diorama, lurking outside of the window as he often does throughout the series.
11. Jeff & The Dean’s Matching Undies
[youtube http://www.youtube.com/watch?v=587_und_Qys%5DJeff exposes a pair of underwear in season one and later on in season three the Dean reveals a pair with the same design.
12. Twitter Beef
The aforementioned “Gwynnifer,” is the actual Twitter name of a person who had a feud with Community’s creator, Dan Harmon.