‘The Big Bang Theory’ season 6, episode 19 preview: Sheldon reveals a secret

What in the world does Penny want to keep hidden from the rest of her friends? On Thursday night, we are set to find out courtesy of an all-new episode of “The Big Bang Theory.” At first glance, the primary story of this episode is going to revolve around some sort of fancy dinner party put on by Kaley Cuoco’s character and Leonard. However, a certain someone in Dr. Sheldon Cooper is out to play party pooper.

So what specifically does he do? While there is a good part of the story left out in the first promo for the episode below, Sheldon does run into the room with some sort of surprise, and it stuns Penny enough for her to try and spontaneously call off the party while leaving the room.

Ultimately, it appears almost as though Sheldon may have stumbled upon this aforementioned “secret” of Penny’s almost out of boredom. After all, he is clearly not a fan of anything related to a dinner party, especially one that forces him to dress up in clothing that he would never wear on any regular occasion. Through most of the brief clip (which is interrupted midway through by another gratuitous shot of Jon Cryer in his underpants during “Two and a Half Men”), he complains like a small child waiting to be set free from church.

What do you think about this video, and do you have any guesses as to what Sheldon could be ruining in this moment for Penny? Be sure to share your thoughts below! If you want to hear some more about an upcoming “Big Bang Theory” episode that will feature the return of multiple new characters, you can do so by heading on over to the link here.

Photo: CBS