The trio behind “It’s Always Sunny in Philadelphia” has cooked up some of the most unpolitically correct humor in the history of TV, but for “A Very Sunny Christmas,” they’ve dialed it down considerably, instead relying on more gratuitous tactics – like language, nudity and gore – to score laughs. Split up into two stories, the holiday special follows the gang as they prepare for Christmas Day. While Dennis and Dee try to teach Frank a lesson by taking him through his own version of “A Christmas Carol,” Mac and Charlie try to cope with the fact that their Christmas memories aren’t as great as they remember them. The episode culminates with a Claymation musical number that features Hermey the Mischief Elf, Sam the Snowman, and the California Raisins dressed up as KKK members.

Though the former subplot definitely has its moments (a sweaty, naked Danny DeVito not being one of them), the latter is easily the funnier of the two, whether it’s Mac losing his temper or Charlie going nuts on a mall Santa. Still, for a show that’s just beginning to earn an audience beyond its cult fanbase, it takes a lot of nerve to release a 42-minute Christmas special straight to DVD. Though you can’t really blame the creators for making this kind of executive decision (this has Fox’s greedy little fingerprints all over it), the show itself really could have been a lot better. Instead, you get a mediocre extended episode for about five dollars less than the cost of an entire season. It’s not exactly a great way to win over new viewers, and certainly not the way to treat old ones either. This is strictly for diehard fans only, but even they may have issues with ponying up the cash for something that FX is bound to air for free eventually.

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