'The Positive Negative Reaction' - Season 9, Episode 16 
Airs Thursday, February 18 at 8/7c on CBS.

When the gang finds out about Bernadette's pregnancy, they celebrate by singing karaoke. Also, Bernadette is concerned when Wolowitz freaks out over her pregnancy announcement, and Wolowitz is convinced he must make more money to provide for the baby.

Episode revolves around a birthday party for Sheldon who in the past has always hated his birthday.

OH MY GOD!!!!  

   

Now, these two ARE the Big Bang couple... Finally he hugs her back like that. so many Penny blossoms....

   

The promo pictures are here.

I can quite happily ignore the episode and concentrate on these beautiful images.

Very late with this thread but if anyone watched and wants to comment... I was so bored my the topic.



"Sheldon and Amy host a live Valentine's "Fun with Flags" podcast. There is trouble between Emily and Raj. Leonard and Penny go out on a teen date. Howard and Bernadette find an unexpected guest in their new hot tub."