There is an evil epidemic in Greendale and it's called Glee. This I thought was a very good Christmas episode even though it's not quite the best in my book. On a sidenote I sincerely hope this will not be the end of the show it shouldn't be, this show has plenty of story and life left, so please don't pull the plug.
Anyway, back to the episode, I like is that in a way it's almost formated like a slasher film, we see each and everyone of the character drop like flies one by one as they all catch Glee fever.
I really like hearing all of the characters sing even one that couldn't sing which was Britta at the end singing as the part of the king in the pagent which was comic silver. From hearing Abed and Troy doing rap. As well as hearing Pierce and even Shirley sing (I thought she was the best of the bunch). But my favorate moment was with Annie which was hillarous. I liked seeing how the Glee fever has made her I.Q. drop, but become more foward with Jeff when we see her trying to seduce him from that Christmas dress she wore which was turning Jeff on and even me, I don't know why may'be it's the fact she's wearing red. Ahem, anywayI really liked the song she sang which was bizzare, funny, and kinda dirty, she kinda sounded like cartoon character Betty Boop. And we see in the end that even Jeff whom hates Glee with every fiber in his soul is not immune, as we see in one scene which was an homage joke to the 1978 version of "Invasion of the Body Snatchers" that infamous ending.
I really liked the motives of Abed which I felt made him sympathtic because all he wanted was for all of them to spend time together one more time before they all took off to see their families for Christmas. I can emphasize with that a bit because Christmas Vacation is a long holiday away from your frends which is why I like to have one more time with my friends and even girlfriend, like going to a party, some place fun, watching a movie together, anything just for one more good time. I really like how he saves his friends (and their lives litterally) at the end once he finds out the evil sceme as well as the Glee instructor missing a few keys; despite the fact not going though with the pagent means he won't have his final time with his friends but their well being was more important. But at the end Abed suceeded when we see all his friends coming in to watch a really crappy (and banned) Christmas movie with him, that was a sweet moment and it also signifies what I truely love about Christmas which is bring everyone we know and love together.
So happy holidays.