The Big Bang Theory

The Big Bang Theory (2007 – 2019)

2007 • 12 seasons • Comedy • TV-PG

On August 8, 2026

#2063 ▼ 1963

2063rd most popular TV show online

36 Popularity Score

Streaming on See all

+1

Overview Watch Cast Seasons (12) Episodes Ranked Similar Videos Images

photo from the episode

Episode 24 — The Countdown Reflection

Season 5 • The Big Bang Theory

Released: 2012-05-10 • Comedy

79%

User score

The fifth season ends with Howard and Bernadette deciding to get married before his NASA mission, causing the gang to scurry into overdrive in an effort to stage the wedding. NASA astronaut Mike Massimino has a cameo as himself.

Episodes

Episode 1
The Skank Reflex Analysis
2011-09-22

Episode 2
The Infestation Hypothesis
2011-09-22

Episode 3
The Pulled Groin Extrapolation
2011-09-29

Episode 4
The Wiggly Finger Catalyst
2011-10-06

Episode 5
The Russian Rocket Reaction
2011-10-13

Episode 6
The Rhinitis Revelation
2011-10-20

Episode 7
The Good Guy Fluctuation
2011-10-27

Episode 8
The Isolation Permutation
2011-11-03

Episode 9
The Ornithophobia Diffusion
2011-11-10

Episode 10
The Flaming Spittoon Acquisition
2011-11-17

Episode 11
The Speckerman Recurrence
2011-12-08

Episode 12
The Shiny Trinket Maneuver
2012-01-12

Episode 13
The Recombination Hypothesis
2012-01-19

Episode 14
The Beta Test Initiation
2012-01-26

Episode 15
The Friendship Contraction
2012-02-02

Episode 16
The Vacation Solution
2012-02-09

Episode 17
The Rothman Disintegration
2012-02-16

Episode 18
The Werewolf Transformation
2012-02-23

Episode 19
The Weekend Vortex
2012-03-08

Episode 20
The Transporter Malfunction
2012-03-29

Episode 21
The Hawking Excitation
2012-04-05

Episode 22
The Stag Convergence
2012-04-26

Episode 23
The Launch Acceleration
2012-05-03

Episode 24
The Countdown Reflection
2012-05-10

Information

Creator	Chuck Lorre, Bill Prady
Episode air date	10.05.2012
Episode runtime	20 min
Episode rating	7.93
Genres	Comedy
TMDB series rating	7.9
IMDb series rating	8.1
Series status	Ended
Age rating	6+
Country	US

Trailer

Additional videos

The Big Bang Theory Trailer

The Big Bang Theory Trailer

▶

The Big Bang Theory - Science is dead

The Big Bang Theory - Science is dead

▶

The Big Bang-Sheldon's "Romantic" Christmas Gift

The Big Bang-Sheldon's "Romantic" Christmas Gift

▶

Merry Newtonmas!

Merry Newtonmas!

▶

The Big Bang Theory Intro Full Version

The Big Bang Theory Intro Full Version

▶

The Big Bang Theory - Sheldon and Penny Exchange Presents

The Big Bang Theory - Sheldon and Penny Exchange Presents

▶

Cast

Johnny Galecki
Leonard Hofstadter

Jim Parsons
Sheldon Cooper

Kaley Cuoco
Penny

Simon Helberg
Howard Wolowitz

Kunal Nayyar
Rajesh Koothrappali

Melissa Rauch
Bernadette Rostenkowski

Mayim Bialik
Amy Farrah Fowler

Similar shows

Hot in Cleveland

That's So Raven

Only Fools and Horses

Three's Company

Friends with Better Lives

The Andy Griffith Show

A Different World

Recommended shows

The Flight Attendant

Based on a True Story

Dr. Horrible's Sing-Along Blog

← Previous episode