The Big Bang Theory (2007– )
1 user 1 critic

The Birthday Synchronicity 

Amy's desire to have an intimate night with Sheldon on her birthday is interrupted by Bernadette going into labor.


(as Nikki Lorre)


(created by), (created by) | 6 more credits »

Watch Now

From $1.99 (SD) on Amazon Video




Episode complete credited cast:
Althea (as Vernée Watson)
Halley Wolowitz (voice)


It's around midnight. Bernadette has gone into labor, with Howard, Raj and Stuart rushing her to the hospital. News of the labor makes its way back to their friends. It's the start of Amy's birthday, the news of the labor which interrupts Sheldon's annual gift of birthday coitus. Beyond Amy looking forward to this annual event, other items beyond the labor may make it more difficult for both Sheldon and Amy to get back into the mood. A baby coming into the world and the fact of Amy's birthday gift lead to Leonard and Penny thinking they too should have sex, which is dependent upon Leonard being able to find some things, including his breath. And in the process of the evening, Raj does something which may place him in Howard and Bernadette's bad books for the evening if not longer. Raj, feeling depressed about putting nine months into being there for Howard and Bernadette and potentially missing the birth, leads to he being shuttled between friends, who may or may not want to help him ... Written by Huggo

Plot Summary | Add Synopsis


Comedy | Romance






Release Date:

15 December 2016 (USA)  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

16:9 HD
See  »

Did You Know?


Title Reference: The title refers to the birthdays of Amy and Howard and Bernadette's new born falling on the same day. See more »

Crazy Credits


(Image of Chuck Lorre dressed as zombie Santa eating decapitated Rudolph)

Making Xmas great again.

Believe me, Chuck Lorre See more »


History of Everything
Written by Barenaked Ladies
Performed by Barenaked Ladies
[Series theme song played during the opening titles]
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Beautifully written episode!
16 December 2016 | by (Manchester, England) – See all my reviews

The big bang theory may have gone down for the past couple of years, but now its back on track! This episode reminded me of what the big bang theory used to be like, with its funny jokes and big revelations.It was hilarious how Sheldon and Amy struggled to have sex mainly because of Bernadette and Howard's new baby. I loved how the baby's gender was revealed so casually, but surprising at the same time. I enjoyed the revelation of how Raj was going to be baby Halley's new Godfather.

Overall, I loved how they picked up on the last episode and ended it in such an amazing manner. Good Job, I am giving it a (10/10)

3 of 9 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
Favourite to least favourite characters after 9 and a half seasons bhawesh-bhimani
ZZZZZZZZZzzzzzz vscpat
Do any of them actually read books? terrybabe
Another spreading wings story! Haha shangra86
The Space Station NightRavyn
Sheldon's apartment zodiac_zxc
Discuss The Birthday Synchronicity (2016) on the IMDb message boards »

Contribute to This Page