Community is one of those shows that takes a certain level of commitment to appreciate.
Nowhere near, say, a Naruto or Bleach level of 300+ episode commitment - but it's not a lazy, laugh track sitcom that beats you over the head with jokes that you see coming from miles away. It's a show that builds slowly, but expects you to keep up with its dry wit and sardonic asides.
Closer to the truly excellent Arrested Development in its subtlety than it is to anything else currently airing on major networks, it's a genuinely funny, intelligent comedy that should resonate with most geeks (despite its mainstream appeal) since it's written by and for them.
Hell, there's even an entire episode devoted to Dungeons & Dragons... but that's neither here nor there. What is here is the unbelievably epic trailer for its fifth season and it looks awesome.
What's most noteworthy about the fifth season is that it marks the return of series creator Dan Harmon and produce/writer Dino Stamatopoulos (aka Starburns), who were both fired at the end of Season 3 following an ugly - and very public - feud with ensemble cast member Chevy Chase.
Many Community fans see this as a tremendous coup insofar as NBC is letting Harmon and Stamatopoulos return to helm the show - but in truth, the fourth season of Community was pretty fucking brilliant.
Maybe it's because the bad blood with Chase was muddying the comedy in Season 3, but it really felt like the show was spinning its wheels in places and Harmon's trademark poignancy was nowhere to be seen. Season 4, by contrast, delivered some of the sharpest jokes the series has churned out to date and had a few episodes that really ratcheted up the pathos between laughs.
Also, it had the evil guy from Krod Mandoon guest star as a super-obsessive
Anyway, if you haven't been watching Community yet (what's wrong with you?!) you'd do well to track down some of the earlier seasons to catch up before January 2's Season 5 debut... although you probably don't need the backstory to appreciate the buttcrack bandit bit in the trailer.