The Big Bang Theory The Birthday Synchronicity (2007–2019) Online
- Original Title :
- The Birthday Synchronicity
- Genre :
- TV Episode / Comedy / Romance
- Year :
- 2007–2019
- Directror :
- Nicole Lorre
- Cast :
- Johnny Galecki,Jim Parsons,Kaley Cuoco
- Writer :
- Chuck Lorre,Bill Prady
- Type :
- TV Episode
- Time :
- 20min
- Rating :
- 7.6/10
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 ...
| Episode complete credited cast: | |||
 | Johnny Galecki | - | Leonard Hofstadter |
 | Jim Parsons | - | Sheldon Cooper |
 | Kaley Cuoco | - | Penny Hofstadter |
 | Simon Helberg | - | Howard Wolowitz |
 | Kunal Nayyar | - | Raj Koothrappali |
 | Mayim Bialik | - | Amy Farrah Fowler |
 | Melissa Rauch | - | Bernadette Rostenkowski |
 | Kevin Sussman | - | Stuart Bloom |
 | Vernee Watson | - | Althea (as Vernée Watson) |
 | Pamela Adlon | - | Halley Wolowitz (voice) |
Leonard and Penny have now been interrupted (while being intimate) by all 3 main original cast members. Sheldon in Season 3 Episode 1, Howard in Season 3 Episode 4 and finally Raj in this episode.
Howard's mother's full name was Debbie Melvina Wolowitz.
In honor of the late Wolowitz, the baby Halley will never be seen in the show
Title Reference: The title refers to the birthdays of Amy and Howard and Bernadette's new born falling on the same day.
This episode was taped on November 22, 2016.
Howard and Bernadette name their daughter Halley, after the comet.