CBS's hugely popular sitcom, "The Big Bang Theory," is all set to return in the New Year, with more funny moments. The episode 12 of Season 7 is called "The Hesitation Ramification." In the episode, one can see Sheldon making efforts to be funny. Also, Penny is likely to propose to Leonard.

According to the preview video, Penny gets a part in NCIS. She can be seen boasting about flying with Mark Harmon. According to spoilers of "The Hesitation Ramification," Penny's little role in NCIS will be edited out, which will make her feel frustrated. Leonard is likely to cheer her up. In an inebriated state, Penny is likely to propose to Leonard. The spoilers suggest that the outcome of which will make her more frustrated. Take aback by the sudden proposal, Leonard may not say yes. Sheldon is likely to ask Leonard whether the relationship between him and Penny is over. It is highly unlikely that after coming so far in their relationship, they will call it quits.

The episode will also show Sheldon trying to be funny. In the preview video, Amy tells the group that it is hard to laugh at Sheldon's knock, knock jokes. However, she finds it funny when Sheldon drops his pants. In the preview video, she can be seen telling Sheldon that he trying to finding definitive theory of comedy is really absurd. Sheldon drops his pants and Amy says, "okay, it is really good," with a big smile on her face. Also in "The Hesitation Ramification," Raj will try to fine tune his 'talking to girls' skills before approaching them.

 [Youtube/the big bang theory]

Official Synopsis of "The Big Bang Theory" Season 7, Episode 12 "The Hesitation Ramification": "When Penny's big acting break on NCIS is a bust, Leonard struggles to help her, which results in Penny asking Leonard a bold relationship question. Meanwhile, Sheldon tries to learn how to be funny and Raj tries to work on his "game" before talking to girls."