Glee left a giant lump of coal in the TV stocking of viewers this week, as "Glee, Actually" proved once again that this series should avoid Christmas specials at all costs.

Can the series rebound? We won't know until January, as William McKinley and NYADA are both on winter break for at least a month.

When the show does return, what will be in store? Puck issuing a misspelled threat, Sam forgetting to wear a shirt and Rachel causing Kurt to nearly spit up his food with an announcement of what she has planned. Intrigued?

Watch the trailer for "Sadie Hawkins" now:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.