Christmas (Brooklyn Nine-Nine)

In its original American broadcast, "Christmas" was seen by an estimated 3.66 million household viewers and gained a 1.6/5 ratings share among adults aged 18–49, according to Nielsen Media Research.[1] This was a slight decrease in viewership from the previous episode, which was watched by 3.69 million viewers with a 1.5/4 in the 18-49 demographics.[2] This means that 1.6 percent of all households with televisions watched the episode, while 5 percent of all households watching television at that time watched it. With these ratings, Brooklyn Nine-Nine was the most watched show on FOX for the night, beating Dads and The Mindy Project, third on its timeslot and fifth for the night in the 18-49 demographics, behind a rerun of NCIS, The Biggest Loser, Chicago Fire, and The Voice.

"Christmas" received positive reviews from critics. Roth Cornet of IGN gave the episode a "good" 7.9 out of 10 and wrote, "Brooklyn Nine-Nine's 'Christmas' found a clever way to create a Yuletide backdrop without delivering another entirely holiday-themed episode so quickly after Thanksgiving. Holt's history as a hothead adds a nice new element to his relationship with Peralta. Though this was another strong and funny episode, it wasn't quite as hilarious as the previous few installments. Overall, another solid entry, though. Nothing says Christmas cheer like coming together to combat death threats."[3]

Molly Eichel of The A.V. Club gave the episode an "B" grade and wrote, "'Christmas' may not have been my favorite entry so far, but it's a good marker as a midway point. It highlights what's great about the series—a game ensemble who gelled early in the series' life — and what doesn't work so well—a lead who is still not as compelling or as much fun to watch as everyone else around him. But if Holt can change from the Afro'd over -emoter to the stoic center of the Nine-Nine, maybe there's hope for Peralta yet."[4]

Alan Sepinwall of HitFix wrote, "So I spent a lot of the A-story feeling the same way I did with some of those earlier episodes: wishing we would quickly get back to the other supporting characters. And that stuff was fun, whether Terry struggling with his fears in front of the shrink, Santiago scheming to get Diaz to smile or Boyle worrying about his flight, and then getting to play hero in an amazing and yet embarrassing way. Holt pop-and-locking in and of itself made this one a must-see, but I think the episode could have been a lot more."[5] Aaron Channon of Paste gave the episode a 7.3 out of 10 and wrote, "Unfortunately, this accounts for the meat of the episode, and it is largely unentertaining save for a few scattered Sambergisms and Braugherisms. It is true that the uncapitalized-upon potential in this scenario is a minor failure by the writers, but more significantly it shows how much the success of the series thus far has come to rely on the supporting cast. Where 'Thanksgiving' excelled by placing the entire cast together in one room, 'Christmas' fails by separating the detectives of the nine-nine into three separate arcs."[6]