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Cast 7

The cast dressed up for a formal dinner party during season 6.

 

The following is a list of episodes of the CBS sitcom "The Big Bang Theory" chronologically.

As of May 16, 2019, 279 episodes aired in 12 seasons.

Series Summary[]

Season Episodes Season Premiere Season Finale
1 17 September 24, 2007 May 19, 2008
2 23 September 22, 2008 May 11, 2009
3 23 September 21, 2009 May 24, 2010
4 24 September 23, 2010 May 19, 2011
5 23 September 22, 2011 May 10, 2012
6 24 September 27, 2012 May 16, 2013
7 23 September 26, 2013 May 15, 2014
8 23 September 22, 2014 May 7, 2015
9 24 September 21, 2015 May 12, 2016
10 24 September 19, 2016 May 11, 2017
11 24 September 25, 2017 May 10, 2018
12 24 September 24, 2018 May 16, 2019

Season 1: 2007–2008[]

Main article: Season 1


Title Original Airdate Series Ep#
Pilot September 24, 2007 1
The Big Bran Hypothesis October 1, 2007 2

The Fuzzy Boots Corollary

October 8, 2007 3
The Luminous Fish Effect October 15, 2007 4
The Hamburger Postulate October 22, 2007 5
The Middle-Earth Paradigm October 29, 2007 6
The Dumpling Paradox November 5, 2007 7
The Grasshopper Experiment November 12, 2007 8
The Cooper-Hofstadter Polarization March 17, 2008 9
The Loobenfeld Decay March 24, 2008 10
The Pancake Batter Anomaly March 31, 2008 11
The Jerusalem Duality April 14, 2008 12
The Bat Jar Conjecture April 21, 2008 13
The Nerdvana Annihilation April 28, 2008 14
The Porkchop Indeterminacy May 5, 2008 15
The Peanut Reaction May 12, 2008 16
The Tangerine Factor May 19, 2008 17

Season 2: 2008–2009[]

Main article: Season 2


Title Original Airdate Series Ep#
The Bad Fish Paradigm September 22, 2008 18
The Codpiece Topology September 29, 2008 19
The Barbarian Sublimation October 6, 2008 20
The Griffin Equivalency October 13, 2008 21
The Euclid Alternative October 20, 2008 22
The Cooper-Nowitzki Theorem November 3, 2008 23
The Panty Piñata Polarization November 10, 2008 24
The Lizard-Spock Expansion November 17, 2008 25
The White Asparagus Triangulation November 24, 2008 26
The Vartabedian Conundrum December 8, 2008 27
The Bath Item Gift Hypothesis December 15, 2008 28
The Killer Robot Instability January 12, 2009 29
The Friendship Algorithm January 19, 2009 30
The Financial Permeability February 2, 2009 31
The Maternal Capacitance February 9, 2009 32
The Cushion Saturation March 2, 2009 33
The Terminator Decoupling March 9, 2009 34
The Work Song Nanocluster March 16, 2009 35
The Dead Hooker Juxtaposition March 30, 2009 36
The Hofstadter Isotope April 13, 2009 37
The Vegas Renormalization April 27, 2009 38
The Classified Materials Turbulence May 4, 2009 39
The Monopolar Expedition May 11, 2009 40

Season 3: 2009–2010[]

Main article: Season 3


Title Original Airdate Series Ep#
The Electric Can Opener Fluctuation September 21, 2009 41
The Jiminy Conjecture September 28, 2009 42
The Gothowitz Deviation October 5, 2009 43
The Pirate Solution October 12, 2009 44
The Creepy Candy Coating Corollary October 19, 2009 45
The Cornhusker Vortex November 2, 2009 46
The Guitarist Amplification November 9, 2009 47
The Adhesive Duck Deficiency November 16, 2009 48
The Vengeance Formulation November 23, 2009 49
The Gorilla Experiment December 7, 2009 50
The Maternal Congruence December 14, 2009 51
The Psychic Vortex January 11, 2010 52
The Bozeman Reaction January 18, 2010 53
The Einstein Approximation February 1, 2010 54
The Large Hadron Collision February 8, 2010 55
The Excelsior Acquisition March 1, 2010 56
The Precious Fragmentation March 8, 2010 57
The Pants Alternative March 22, 2010 58
The Wheaton Recurrence April 12, 2010 59
The Spaghetti Catalyst May 3, 2010 60
The Plimpton Stimulation May 10, 2010 61
The Staircase Implementation May 17, 2010 62
The Lunar Excitation May 24, 2010 63

Season 4: 2010–2011[]

Main article: Season 4


Title Original Airdate Series Ep#
The Robotic Manipulation September 23, 2010 64
The Cruciferous Vegetable Amplification September 30, 2010 65
The Zazzy Substitution October 7, 2010 66
The Hot Troll Deviation October 14, 2010 67
The Desperation Emanation October 21, 2010 68
The Irish Pub Formulation October 28, 2010 69
The Apology Insufficiency November 4, 2010 70
The 21-Second Excitation November 11, 2010 71
The Boyfriend Complexity November 18, 2010 72
The Alien Parasite Hypothesis December 9, 2010 73
The Justice League Recombination December 16, 2010 74
The Bus Pants Utilization January 6, 2011 75
The Love Car Displacement January 20, 2011 76
The Thespian Catalyst February 3, 2011 77
The Benefactor Factor February 10, 2011 78
The Cohabitation Formulation February 17, 2011 79
The Toast Derivation February 24, 2011 80
The Prestidigitation Approximation March 10, 2011 81
The Zarnecki Incursion March 31, 2011 82
The Herb Garden Germination April 7, 2011 83
The Agreement Dissection April 28, 2011 84
The Wildebeest Implementation May 5, 2011 85
The Engagement Reaction May 12, 2011 86
The Roommate Transmogrification May 19, 2011 87

Season 5: 2011–2012[]

Main article: Season 5


Title Original Airdate Series Ep#
The Skank Reflex Analysis September 22, 2011 88
The Infestation Hypothesis September 22, 2011 89
The Pulled Groin Extrapolation September 29, 2011 90
The Wiggly Finger Catalyst October 6, 2011 91
The Russian Rocket Reaction October 13, 2011 92
The Rhinitis Revelation October 20, 2011 93
The Good Guy Fluctuation October 27, 2011 94
The Isolation Permutation November 3, 2011 95
The Ornithophobia Diffusion November 10, 2011 96
The Flaming Spittoon Acquisition November 17, 2011 97
The Speckerman Recurrence December 8, 2011 98
The Shiny Trinket Maneuver January 12, 2012 99
The Recombination Hypothesis January 19, 2012 100
The Beta Test Initiation January 26, 2012 101
The Friendship Contraction February 2, 2012 102
The Vacation Solution February 9, 2012 103
The Rothman Disintegration February 16, 2012 104
The Werewolf Transformation February 23, 2012 105
The Weekend Vortex March 8, 2012 106
The Transporter Malfunction March 29, 2012 107
The Hawking Excitation April 5, 2012 108
The Stag Convergence April 26, 2012 109
The Launch Acceleration May 3, 2012 110
The Countdown Reflection May 10, 2012 111

Season 6: 2012–2013[]

Main article: Season 6


Title Original Airdate Series Ep#
The Date Night Variable September 27, 2012 112
The Decoupling Fluctuation October 4, 2012 113
The Higgs Boson Observation October 11, 2012 114
The Re-Entry Minimization October 18, 2012 115
The Holographic Excitation October 25, 2012 116
The Extract Obliteration November 1, 2012 117
The Habitation Configuration November 8, 2012 118
The 43 Peculiarity November 15, 2012 119
The Parking Spot Escalation November 29, 2012 120
The Fish Guts Displacement December 6, 2012 121
The Santa Simulation December 13, 2012 122
The Egg Salad Equivalency January 3, 2013 123
The Bakersfield Expedition January 10, 2013 124
The Cooper/Kripke Inversion January 31, 2013 125
The Spoiler Alert Segmentation  February 7, 2013 126
The Tangible Affection Proof February 14, 2013 127
The Monster Isolation February 21, 2013 128
The Contractual Obligation Implementation March 7, 2013 129
The Closet Reconfiguration March 14, 2013 130
The Tenure Turbulence April 4, 2013 131
The Closure Alternative April 25, 2013 132
The Proton Resurgence May 2, 2013 133
The Love Spell Potential May 9, 2013 134
The Bon Voyage Reaction May 16, 2013 135

Season 7: 2013–2014[]

Main article: Season 7


Title Original Airdate Series Ep#
The Hofstadter Insufficiency September 26, 2013 136
The Deception Verification September 26, 2013 137
The Scavenger Vortex October 3, 2013 138
The Raiders Minimization October 10, 2013 139
The Workplace Proximity October 17, 2013 140
The Romance Resonance October 24, 2013 141
The Proton Displacement November 7, 2013 142
The Itchy Brain Simulation November 14, 2013 143
The Thanksgiving Decoupling November 21, 2013 144
The Discovery Dissipation December 5, 2013 145
The Cooper Extraction December 12, 2013 146
The Hesitation Ramification January 2, 2014 147
The Occupation Recalibration January 9, 2014 148
The Convention Conundrum January 30, 2014 149
The Locomotive Manipulation February 6, 2014 150
The Table Polarization February 27, 2014 151
The Friendship Turbulence March 6, 2014 152
The Mommy Observation March 13, 2014 153
The Indecision Amalgamation April 3, 2014 154
The Relationship Diremption April 10, 2014 155
The Anything Can Happen Recurrence April 24, 2014 156
The Proton Transmogrification May 1, 2014 157 
The Gorilla Dissolution May 8, 2014 158
The Status Quo Combustion May 15, 2014 159

Season 8: 2014–2015[]

Main article: Season 8


Title Original Airdate Series Ep#
The Locomotion Interruption September 22, 2014 160
The Junior Professor Solution September 22, 2014 161
The First Pitch Insufficiency September 29, 2014 162
The Hook-up Reverberation October 6, 2014 163
The Focus Attenuation October 13, 2014 164
The Expedition Approximation October 20, 2014 165
The Misinterpretation Agitation October 30, 2014 166
The Prom Equivalency November 6, 2014 167
The Septum Deviation November 13, 2014 168
The Champagne Reflection November 20, 2014 169
The Clean Room Infiltration December 11, 2014 170
The Space Probe Disintegration January 8, 2015 171
The Anxiety Optimization January 29, 2015 172
The Troll Manifestation February 5, 2015 173
The Comic Book Store Regeneration February 19, 2015 174
The Intimacy Acceleration February 26, 2015 175
The Colonization Application March 5, 2015 176
The Leftover Thermalization March 12, 2015 177
The Skywalker Incursion April 2, 2015 178
The Fortification Implementation April 9, 2015 179
The Communication Deterioration April 16, 2015 180
The Graduation Transmission April 23, 2015 181
The Maternal Combustion April 30, 2015 182
The Commitment Determination May 7, 2015 183

Season 9: 2015–2016[]

Main article: Season 9


Title Original Airdate Series Ep#
The Matrimonial Momentum September 21, 2015 184
The Separation Oscillation September 28, 2015 185
The Bachelor Party Corrosion October 5, 2015 186
The 2003 Approximation October 12, 2015 187
The Perspiration Implementation October 19, 2015 188
The Helium Insufficiency October 26, 2015 189
The Spock Resonance November 5, 2015 190
The Mystery Date Observation  November 12, 2015 191
The Platonic Permutation November 19, 2015 192
The Earworm Reverberation December 10, 2015 193
The Opening Night Excitation December 17, 2015 194
The Sales Call Sublimation January 7, 2016 195
The Empathy Optimization January 14, 2016 196
The Meemaw Materialization February 4, 2016 197
The Valentino Submergence February 11, 2016 198
The Positive Negative Reaction February 18, 2016 199
The Celebration Experimentation February 25, 2016 200
The Application Deterioration March 10, 2016 201
The Solder Excursion Diversion March 31, 2016 202
The Big Bear Precipitation April 7, 2016 203
The Viewing Party Combustion April 21, 2016 204
The Fermentation Bifurcation April 28, 2016 205
The Line Substitution Solution May 5, 2016 206
The Convergence Convergence May 12, 2016 207

Season 10: 2016–2017[]

Main article: Season 10


Title Original Airdate Series Ep#
The Conjugal Conjecture September 19, 2016 208
The Military Miniaturization September 26, 2016 209
The Dependence Transcendence October 3, 2016 210
The Cohabitation Experimentation October 10, 2016 211
The Hot Tub Contamination October 17, 2016 212
The Fetal Kick Catalyst October 27, 2016 213
The Veracity Elasticity November 3, 2016 214
The Brain Bowl Incubation November 10, 2016 215
The Geology Elevation November 17, 2016 216
The Property Division Collision December 1, 2016 217
The Birthday Synchronicity December 15, 2016 218
The Holiday Summation January 5, 2017 219
The Romance Recalibration January 19, 2017 220
The Emotion Detection Automation February 2, 2017 221
The Locomotion Reverberation February 9, 2017 222
The Allowance Evaporation February 16, 2017 223
The Comic-Con Conundrum February 23, 2017 224
The Escape Hatch Identification March 9, 2017 225
The Collaboration Fluctuation March 30, 2017 226
The Recollection Dissipation April 6, 2017 227
The Separation Agitation April 13, 2017 228
The Cognition Regeneration April 27, 2017 229
The Gyroscopic Collapse May 4, 2017 230
The Long Distance Dissonance May 11, 2017 231

Season 11: 2017-2018[]

Main article: Season 11


Title Original Airdate Series Ep#
The Proposal Proposal September 25, 2017 232
The Retraction Reaction October 2, 2017 233
The Relaxation Integration October 9, 2017 234
The Explosion Implosion October 16, 2017 235
The Collaboration Contamination October 23, 2017 236
The Proton Regeneration November 2, 2017 237
The Geology Methodology November 9, 2017 238
The Tesla Recoil November 16, 2017 239
The Bitcoin Entanglement November 30, 2017 240
The Confidence Erosion December 7, 2017 241
The Celebration Reverberation December 14, 2017 242
The Matrimonial Metric January 4, 2018 243
The Solo Oscillation January 11, 2018 244
The Separation Triangulation January 18, 2018 245
The Novelization Correlation February 1, 2018 246
The Neonatal Nomenclature March 1, 2018 247
The Athenaeum Allocation March 8, 2018 248
The Gates Excitation March 29, 2018 249
The Tenant Disassociation April 5, 2018 250
The Reclusive Potential April 12, 2018 251
The Comet Polarization April 19, 2018 252
The Monetary Insufficiency April 26, 2018 253
The Sibling Realignment May 3, 2018 254
The Bow Tie Asymmetry May 10, 2018 255

Season 12: 2018-2019[]

Main article: Season 12


Title Original Airdate Series Ep#
The Conjugal Configuration September 24, 2018 256
The Wedding Gift Wormhole October 1, 2018 257
The Procreation Calculation October 8, 2018 258
The Tam Turbulence October 15, 2018 259
The Planetarium Collision October 22, 2018 260
The Imitation Perturbation October 29, 2018 261
The Grant Allocation Derivation November 1, 2018 262
The Consummation Deviation November 8, 2018 263
The Citation Negation November 15, 2018 264
The VCR Illumination December 6, 2018 265
The Paintball Scattering January 3, 2019 266
The Propagation Proposition January 10, 2019 267
The Confirmation Polarization January 17, 2019 268
The Meteorite Manifestation January 31, 2019 269
The Donation Oscillation February 7, 2019 270
The D & D Vortex February 21, 2019 271
The Conference Valuation March 7, 2019 272
The Laureate Accumulation April 4, 2019 273
The Inspiration Deprivation April 18, 2019 274
The Decision Reverberation April 25, 2019 275
The Plagiarism Schism May 2, 2019 276
The Maternal Conclusion May 9, 2019 277
The Change Constant May 16, 2019 278
The Stockholm Syndrome May 16, 2019 279
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