1.On The Office, you can see the George Foreman grill that Michael burns his foot on in Season 2 — because he likes to wake up to the smell of bacon — in the Season 4 episode "Dinner Party."
2.On Friends, for Ross's bachelor party, the balloons are actually condoms that have been inflated.
4.On The Office, Dwight tells us a very ominous Schrute wedding tradition, and he and Angela do it when they get married seasons later.
6.On The Office, Michael has an Italian flag on his desk for St. Patrick's Day.
7.Also on The Office, for St. Patrick's Day, the water in the office watercooler is green.
8.On New Girl, the alternatives to intercourse that Jess tells her students are pretty stellar.
9.On Friends, when Chandler is sad about breaking up with Janice and he's singing Lionel Richie, he is also holding Janice's shoe that he stole from her earlier.
10.On The Office, Michael says that he is separating the trash into "whites and colors" for recycling. In an earlier season, you can see that Dunder Mifflin Scranton has different recycling bins for whites and colors.
11.
On Friends, the dry cleaner references his own movie.
12.On New Girl, the stick Nick uses to stir "the sauce" is the same stick the loft uses to fix the garbage disposal.
13.On The Office, when Jan hands Michael their relationship-disclosing agreement for the company, he says he's going to frame it. He does.
14.On Friends, in the episode where Monica and Ross's maternal grandmother dies, Monica and Ross sit exactly like their mother and father, respectively.
15.
On Friends, Chandler looks through Rachel's purse.
30.On The Office, Dwight and Kevin absolutely love fireworks in Season 2, and they're outraged by a potential lack of firecrackers in Season 6.
31.On Friends, in an episode with a story line about Ross's old monkey, Marcel, some characters go to a restaurant called "Marcel's."
32.On The Office, the lawyer Michael hires in Season 2 is the same lawyer Michael mentions when he and Dwight throw a watermelon off the roof and it hits a car in Season 3.
33.On New Girl, the background of Jess's phone in a Season 6 episode is very similar to the puppy picture that made her cry in Season 2.
34.On Friends, after reminiscing about a beer they loved in London, Joey buys some for his apartment.
35.
On The Office, Kevin follows Michael's instructions in the episode "Booze Cruise."
36.On New Girl, when everyone but Jess is voting on whether Jess should sleep with Ryan, Nick is the only one who doesn't raise his hand in favor.
37.On The Office, Michael, Dwight, and Jim drive to the Utica branch, and Michael and Dwight try to steal the copier. Later, in Season 5, the Utica copier is padlocked when we see it.
38.On Friends, 9/11 is never explicitly addressed, but there are tributes to the victims and heroes of the terrorist attack throughout episodes that aired in late fall 2001.
39.On New Girl, Nick learns Schmidt dry-cleans his socks three episodes before Schmidt reveals he doesn't know how to do laundry.
40.On The Office, when Michael is sleeping at his desk and everyone is trying to change all the clocks so they can leave early, Dwight runs to change the clock in Michael's car without any shoes on so that his footsteps don't wake up Michael.
41.On Friends, there's a potato in Central Perk at one point.
42.And finally, on New Girl, bears are mentioned in every episode.
