Which Sitcom Did Their Christmas Episode the Best?

Everyone knows that "Friends" is the kingpin of Thanksgiving episodes, but does one sitcom reign supreme over Christmas episodes? There's only so much you can do when you're making a Christmas version of a 20-minute show -- mistletoe mishaps, last-minute gift shopping gone bad, a holiday party of the ages -- so when someone gets it right, we must applaud them! We think these six are the cream of the crop, but we'll see what the masses have to say about them.