Glee viewers got to know Sam well this week, while, in one of the more surprising developments in show history, Artie REALLY got to know Brittany..

What did you think of the episode "Duets?" Sound off on our detailed review now!

Glancing ahead, meanwhile, our favorite musical comedy will take next week off and then return in a big way on October 26: with an episode that pays homage to the 1975 classic movie, The Rocky Horror Picture Show. The installment will feature Kurt as Riff Raff,  Rachel as Janet and Mercedes as Frank-N-Furter.

Get an early look at various characters in costume and then check out the official preview here:

[video url="http://www.tvfanatic.com/videos/rocky-horror-picture-tribute/" title="Rocky Horror Picture Tribute"] [/video]

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