1. The show is based on creator Dan Harmon's time at Community college, where he tried to get back with his ex-girlfriend in his Spanish class.

2. In "Physical Education" in season one, Abed does an impression of Don Draper from Mad Men when he pretends to seduce Annie. Alison Brie, who plays Annie, also plays Trudy Campbell in Mad Men.

3. The impression clearly had an effect on her, as she remembers it when Abed does another impression of Draper in Season 3.