| episode | air date | countdown | title |
| S12E24 | 2019-05-16 | | The Stockholm Syndrome | |
| S12E23 | 2019-05-16 | | The Change Constant | |
| S12E22 | 2019-05-09 | | The Maternal Conclusion | |
| S12E21 | 2019-05-02 | | The Plagiarism Schism | |
| S12E20 | 2019-04-25 | | The Decision Reverberation | |
| S12E19 | 2019-04-18 | | The Inspiration Deprivation | |
| S12E18 | 2019-04-04 | | The Laureate Accumulation | |
| S12E17 | 2019-03-07 | | The Conference Valuation | |
| S12E16 | 2019-02-21 | | The D & D Vortex | |
| S12E15 | 2019-02-07 | | The Donation Oscillation | |
| S12E14 | 2019-01-31 | | The Meteorite Manifestation | |
| S12E13 | 2019-01-17 | | The Confirmation Polarization | |
| S12E12 | 2019-01-10 | | The Propagation Proposition | |
| S12E11 | 2019-01-03 | | The Paintball Scattering | |
| S12E10 | 2018-12-06 | | The VCR Illumination | |
| S12E09 | 2018-11-15 | | The Citation Negation | |
| S12E08 | 2018-11-08 | | The Consummation Deviation | |
| S12E07 | 2018-11-01 | | The Grant Allocation Derivation | |
| S12E06 | 2018-10-25 | | The Imitation Perturbation | |
| S12E05 | 2018-10-18 | | The Planetarium Collision | |
| S12E04 | 2018-10-11 | | The Tam Turbulence | |
| S12E03 | 2018-10-04 | | The Procreation Calculation | |
| S12E02 | 2018-09-27 | | The Wedding Gift Wormhole | |
| S12E01 | 2018-09-24 | | The Conjugal Configuration | |
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| S11E24 | 2018-05-10 | | The Bow Tie Asymmetry | |
| S11E23 | 2018-05-03 | | The Sibling Realignment | |
| S11E22 | 2018-04-26 | | The Monetary Insufficiency | |
| S11E21 | 2018-04-19 | | The Comet Polarization | |
| S11E20 | 2018-04-12 | | The Reclusive Potential | |
| S11E19 | 2018-04-05 | | The Tenant Disassociation | |
| S11E18 | 2018-03-29 | | The Gates Excitation | |
| S11E17 | 2018-03-08 | | The Athenaeum Allocation | |
| S11E16 | 2018-03-01 | | The Neonatal Nomenclature | |
| S11E15 | 2018-02-01 | | The Novelization Correlation | |
| S11E14 | 2018-01-18 | | The Separation Triangulation | |
| S11E13 | 2018-01-11 | | The Solo Oscillation | |
| S11E12 | 2018-01-04 | | The Matrimonial Metric | |
| S11E11 | 2017-12-14 | | The Celebration Reverberation | |
| S11E10 | 2017-12-07 | | The Confidence Erosion | |
| S11E09 | 2017-11-30 | | The Bitcoin Entanglement | |
| S11E08 | 2017-11-16 | | The Tesla Recoil | |
| S11E07 | 2017-11-09 | | The Geology Methodology | |
| S11E06 | 2017-11-02 | | The Proton Regeneration | |
| S11E05 | 2017-10-23 | | The Collaboration Contamination | |
| S11E04 | 2017-10-16 | | The Explosion Implosion | |
| S11E03 | 2017-10-09 | | The Relaxation Integration | |
| S11E02 | 2017-10-02 | | The Retraction Reaction | |
| S11E01 | 2017-09-25 | | The Proposal Proposal | |
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| S10E24 | 2017-05-11 | | The Long Distance Dissonance | |
| S10E23 | 2017-05-04 | | The Gyroscopic Collapse | |
| S10E22 | 2017-04-27 | | The Cognition Regeneration | |
| S10E21 | 2017-04-13 | | The Separation Agitation | |
| S10E20 | 2017-04-06 | | The Recollection Dissipation | |
| S10E19 | 2017-03-30 | | The Collaboration Fluctuation | |
| S10E18 | 2017-03-09 | | The Escape Hatch Identification | |
| S10E17 | 2017-02-23 | | The Comic-Con Conundrum | |
| S10E16 | 2017-02-16 | | The Allowance Evaporation | |
| S10E15 | 2017-02-09 | | The Locomotion Reverberation | |
| S10E14 | 2017-02-02 | | The Emotion Detection Automation | |
| S10E13 | 2017-01-19 | | The Romance Recalibration | |
| S10E12 | 2017-01-05 | | The Holiday Summation | |
| S10E11 | 2016-12-15 | | The Birthday Synchronicity | |
| S10E10 | 2016-12-01 | | The Property Division Collision | |
| S10E09 | 2016-11-17 | | The Geology Elevation | |
| S10E08 | 2016-11-10 | | The Brain Bowl Incubation | |
| S10E07 | 2016-11-03 | | The Veracity Elasticity | |
| S10E06 | 2016-10-27 | | The Fetal Kick Catalyst | |
| S10E05 | 2016-10-17 | | The Hot Tub Contamination | |
| S10E04 | 2016-10-10 | | The Cohabitation Experimentation | |
| S10E03 | 2016-10-03 | | The Dependence Transcendence | |
| S10E02 | 2016-09-26 | | The Military Miniaturization | |
| S10E01 | 2016-09-19 | | The Conjugal Conjecture | |
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| S09E24 | 2016-05-12 | | The Convergence Convergence | |
| S09E23 | 2016-05-05 | | The Line Substitution Solution | |
| S09E22 | 2016-04-28 | | The Fermentation Bifurcation | |
| S09E21 | 2016-04-21 | | The Viewing Party Combustion | |
| S09E20 | 2016-04-07 | | The Big Bear Precipitation | |
| S09E19 | 2016-03-31 | | The Solder Excursion Diversion | |
| S09E18 | 2016-03-10 | | The Application Deterioration | |
| S09E17 | 2016-02-25 | | The Celebration Experimentation | |
| S09E16 | 2016-02-18 | | The Positive Negative Reaction | |
| S09E15 | 2016-02-11 | | The Valentino Submergence | |
| S09E14 | 2016-02-04 | | The Meemaw Materialization | |
| S09E13 | 2016-01-14 | | The Empathy Optimization | |
| S09E12 | 2016-01-07 | | The Sales Call Sublimation | |
| S09E11 | 2015-12-17 | | The Opening Night Excitation | |
| S09E10 | 2015-12-10 | | The Earworm Reverberation | |
| S09E09 | 2015-11-19 | | The Platonic Permutation | |
| S09E08 | 2015-11-12 | | The Mystery Date Observation | |
| S09E07 | 2015-11-05 | | The Spock Resonance | |
| S09E06 | 2015-10-26 | | The Helium Insufficiency | |
| S09E05 | 2015-10-19 | | The Perspiration Implementation | |
| S09E04 | 2015-10-12 | | The 2003 Approximation | |
| S09E03 | 2015-10-05 | | The Bachelor Party Corrosion | |
| S09E02 | 2015-09-28 | | The Separation Oscillation | |
| S09E01 | 2015-09-21 | | The Matrimonial Momentum | |
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| S08E24 | 2015-05-07 | | The Commitment Determination | |
| S08E23 | 2015-04-30 | | The Maternal Combustion | |
| S08E22 | 2015-04-23 | | The Graduation Transmission | |
| S08E21 | 2015-04-16 | | The Communication Deterioration | |
| S08E20 | 2015-04-09 | | The Fortification Implementation | |
| S08E19 | 2015-04-02 | | The Skywalker Incursion | |
| S08E18 | 2015-03-12 | | The Leftover Thermalization | |
| S08E17 | 2015-03-05 | | The Colonization Application | |
| S08E16 | 2015-02-26 | | The Intimacy Acceleration | |
| S08E15 | 2015-02-19 | | The Comic Book Store Regeneration | |
| S08E14 | 2015-02-05 | | The Troll Manifestation | |
| S08E13 | 2015-01-29 | | The Anxiety Optimization | |
| S08E12 | 2015-01-08 | | The Space Probe Disintegration | |
| S08E11 | 2014-12-11 | | The Clean Room Infiltration | |
| S08E10 | 2014-11-20 | | The Champagne Reflection | |
| S08E09 | 2014-11-13 | | The Septum Deviation | |
| S08E08 | 2014-11-06 | | The Prom Equivalency | |
| S08E07 | 2014-10-30 | | The Misinterpretation Agitation | |
| S08E06 | 2014-10-20 | | The Expedition Approximation | |
| S08E05 | 2014-10-13 | | The Focus Attenuation | |
| S08E04 | 2014-10-06 | | The Hook-Up Reverberation | |
| S08E03 | 2014-09-29 | | The First Pitch Insufficiency | |
| S08E02 | 2014-09-22 | | The Junior Professor Solution | |
| S08E01 | 2014-09-22 | | The Locomotion Interruption | |
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| S07E24 | 2014-05-15 | | The Status Quo Combustion | |
| S07E23 | 2014-05-08 | | The Gorilla Dissolution | |
| S07E22 | 2014-05-01 | | The Proton Transmogrification | |
| S07E21 | 2014-04-24 | | The Anything Can Happen Recurrence | |
| S07E20 | 2014-04-10 | | The Relationship Diremption | |
| S07E19 | 2014-04-03 | | The Indecision Amalgamation | |
| S07E18 | 2014-03-13 | | The Mommy Observation | |
| S07E17 | 2014-03-06 | | The Friendship Turbulence | |
| S07E16 | 2014-02-27 | | The Table Polarization | |
| S07E15 | 2014-02-06 | | The Locomotive Manipulation | |
| S07E14 | 2014-01-30 | | The Convention Conundrum | |
| S07E13 | 2014-01-09 | | The Occupation Recalibration | |
| S07E12 | 2014-01-02 | | The Hesitation Ramification | |
| S07E11 | 2013-12-12 | | The Cooper Extraction | |
| S07E10 | 2013-12-05 | | The Discovery Dissipation | |
| S07E09 | 2013-11-21 | | The Thanksgiving Decoupling | |
| S07E08 | 2013-11-14 | | The Itchy Brain Simulation | |
| S07E07 | 2013-11-07 | | The Proton Displacement | |
| S07E06 | 2013-10-24 | | The Romance Resonance | |
| S07E05 | 2013-10-17 | | The Workplace Proximity | |
| S07E04 | 2013-10-10 | | The Raiders Minimization | |
| S07E03 | 2013-10-03 | | The Scavenger Vortex | |
| S07E02 | 2013-09-26 | | The Deception Verification | |
| S07E01 | 2013-09-26 | | The Hofstadter Insufficiency | |
| |
| S06E24 | 2013-05-16 | | The Bon Voyage Reaction | |
| S06E23 | 2013-05-09 | | The Love Spell Potential | |
| S06E22 | 2013-05-02 | | The Proton Resurgence | |
| S06E21 | 2013-04-25 | | The Closure Alternative | |
| S06E20 | 2013-04-04 | | The Tenure Turbulence | |
| S06E19 | 2013-03-14 | | The Closet Reconfiguration | |
| S06E18 | 2013-03-07 | | The Contractual Obligation Implementation | |
| S06E17 | 2013-02-21 | | The Monster Isolation | |
| S06E16 | 2013-02-14 | | The Tangible Affection Proof | |
| S06E15 | 2013-02-07 | | The Spoiler Alert Segmentation | |
| S06E14 | 2013-01-31 | | The Cooper/Kripke Inversion | |
| S06E13 | 2013-01-10 | | The Bakersfield Expedition | |
| S06E12 | 2013-01-03 | | The Egg Salad Equivalency | |
| S06E11 | 2012-12-13 | | The Santa Simulation | |
| S06E10 | 2012-12-06 | | The Fish Guts Displacement | |
| S06E09 | 2012-11-29 | | The Parking Spot Escalation | |
| S06E08 | 2012-11-15 | | The 43 Peculiarity | |
| S06E07 | 2012-11-08 | | The Habitation Configuration | |
| S06E06 | 2012-11-01 | | The Extract Obliteration | |
| S06E05 | 2012-10-25 | | The Holographic Excitation | |
| S06E04 | 2012-10-18 | | The Re-Entry Minimization | |
| S06E03 | 2012-10-11 | | The Higgs Boson Observation | |
| S06E02 | 2012-10-04 | | The Decoupling Fluctuation | |
| S06E01 | 2012-09-27 | | The Date Night Variable | |
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| S05E24 | 2012-05-10 | | The Countdown Reflection | |
| S05E23 | 2012-05-03 | | The Launch Acceleration | |
| S05E22 | 2012-04-26 | | The Stag Convergence | |
| S05E21 | 2012-04-05 | | The Hawking Excitation | |
| S05E20 | 2012-03-29 | | The Transporter Malfunction | |
| S05E19 | 2012-03-08 | | The Weekend Vortex | |
| S05E18 | 2012-02-23 | | The Werewolf Transformation | |
| S05E17 | 2012-02-16 | | The Rothman Disintegration | |
| S05E16 | 2012-02-09 | | The Vacation Solution | |
| S05E15 | 2012-02-02 | | The Friendship Contraction | |
| S05E14 | 2012-01-26 | | The Beta Test Initiation | |
| S05E13 | 2012-01-19 | | The Recombination Hypothesis | |
| S05E12 | 2012-01-12 | | The Shiny Trinket Maneuver | |
| S05E11 | 2011-12-08 | | The Speckerman Recurrence | |
| S05E10 | 2011-11-17 | | The Flaming Spittoon Acquisition | |
| S05E09 | 2011-11-10 | | The Ornithophobia Diffusion | |
| S05E08 | 2011-11-03 | | The Isolation Permutation | |
| S05E07 | 2011-10-27 | | The Good Guy Fluctuation | |
| S05E06 | 2011-10-20 | | The Rhinitis Revelation | |
| S05E05 | 2011-10-13 | | The Russian Rocket Reaction | |
| S05E04 | 2011-10-06 | | The Wiggly Finger Catalyst | |
| S05E03 | 2011-09-29 | | The Pulled Groin Extrapolation | |
| S05E02 | 2011-09-22 | | The Infestation Hypothesis | |
| S05E01 | 2011-09-22 | | The Skank Reflex Analysis | |
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| S04E24 | 2011-05-19 | | The Roommate Transmogrification | |
| S04E23 | 2011-05-12 | | The Engagement Reaction | |
| S04E22 | 2011-05-05 | | The Wildebeest Implementation | |
| S04E21 | 2011-04-28 | | The Agreement Dissection | |
| S04E20 | 2011-04-07 | | The Herb Garden Germination | |
| S04E19 | 2011-03-31 | | The Zarnecki Incursion | |
| S04E18 | 2011-03-10 | | The Prestidigitation Approximation | |
| S04E17 | 2011-02-24 | | The Toast Derivation | |
| S04E16 | 2011-02-17 | | The Cohabitation Formulation | |
| S04E15 | 2011-02-10 | | The Benefactor Factor | |
| S04E14 | 2011-02-03 | | The Thespian Catalyst | |
| S04E13 | 2011-01-20 | | The Love Car Displacement | |
| S04E12 | 2011-01-06 | | The Bus Pants Utilization | |
| S04E11 | 2010-12-16 | | The Justice League Recombination | |
| S04E10 | 2010-12-09 | | The Alien Parasite Hypothesis | |
| S04E09 | 2010-11-18 | | The Boyfriend Complexity | |
| S04E08 | 2010-11-11 | | The 21-Second Excitation | |
| S04E07 | 2010-11-04 | | The Apology Insufficiency | |
| S04E06 | 2010-10-28 | | The Irish Pub Formulation | |
| S04E05 | 2010-10-21 | | The Desperation Emanation | |
| S04E04 | 2010-10-14 | | The Hot Troll Deviation | |
| S04E03 | 2010-10-07 | | The Zazzy Substitution | |
| S04E02 | 2010-09-30 | | The Cruciferous Vegetable Amplification | |
| S04E01 | 2010-09-23 | | The Robotic Manipulation | |
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| S03E23 | 2010-05-24 | | The Lunar Excitation | |
| S03E22 | 2010-05-17 | | The Staircase Implementation | |
| S03E21 | 2010-05-10 | | The Plimpton Stimulation | |
| S03E20 | 2010-05-03 | | The Spaghetti Catalyst | |
| S03E19 | 2010-04-12 | | The Wheaton Recurrence | |
| S03E18 | 2010-03-22 | | The Pants Alternative | |
| S03E17 | 2010-03-08 | | The Precious Fragmentation | |
| S03E16 | 2010-03-01 | | The Excelsior Acquisition | |
| S03E15 | 2010-02-08 | | The Large Hadron Collision | |
| S03E14 | 2010-02-01 | | The Einstein Approximation | |
| S03E13 | 2010-01-18 | | The Bozeman Reaction | |
| S03E12 | 2010-01-11 | | The Psychic Vortex | |
| S03E11 | 2009-12-14 | | The Maternal Congruence | |
| S03E10 | 2009-12-07 | | The Gorilla Experiment | |
| S03E09 | 2009-11-23 | | The Vengeance Formulation | |
| S03E08 | 2009-11-16 | | The Adhesive Duck Deficiency | |
| S03E07 | 2009-11-09 | | The Guitarist Amplification | |
| S03E06 | 2009-11-02 | | The Cornhusker Vortex | |
| S03E05 | 2009-10-19 | | The Creepy Candy Coating Corollary | |
| S03E04 | 2009-10-12 | | The Pirate Solution | |
| S03E03 | 2009-10-05 | | The Gothowitz Deviation | |
| S03E02 | 2009-09-28 | | The Jiminy Conjecture | |
| S03E01 | 2009-09-21 | | The Electric Can Opener Fluctuation | |
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| S02E23 | 2009-05-11 | | The Monopolar Expedition | |
| S02E22 | 2009-05-04 | | The Classified Materials Turbulence | |
| S02E21 | 2009-04-27 | | The Vegas Renormalization | |
| S02E20 | 2009-04-13 | | The Hofstadter Isotope | |
| S02E19 | 2009-03-30 | | The Dead Hooker Juxtaposition | |
| S02E18 | 2009-03-16 | | The Work Song Nanocluster | |
| S02E17 | 2009-03-09 | | The Terminator Decoupling | |
| S02E16 | 2009-03-02 | | The Cushion Saturation | |
| S02E15 | 2009-02-09 | | The Maternal Capacitance | |
| S02E14 | 2009-02-02 | | The Financial Permeability | |
| S02E13 | 2009-01-19 | | The Friendship Algorithm | |
| S02E12 | 2009-01-12 | | The Killer Robot Instability | |
| S02E11 | 2008-12-15 | | The Bath Item Gift Hypothesis | |
| S02E10 | 2008-12-08 | | The Vartabedian Conundrum | |
| S02E09 | 2008-11-24 | | The White Asparagus Triangulation | |
| S02E08 | 2008-11-17 | | The Lizard-Spock Expansion | |
| S02E07 | 2008-11-10 | | The Panty Piñata Polarization | |
| S02E06 | 2008-11-03 | | The Cooper-Nowitzki Theorem | |
| S02E05 | 2008-10-20 | | The Euclid Alternative | |
| S02E04 | 2008-10-13 | | The Griffin Equivalency | |
| S02E03 | 2008-10-06 | | The Barbarian Sublimation | |
| S02E02 | 2008-09-29 | | The Codpiece Topology | |
| S02E01 | 2008-09-22 | | The Bad Fish Paradigm | |
| |
| S01E17 | 2008-05-19 | | The Tangerine Factor | |
| S01E16 | 2008-05-12 | | The Peanut Reaction | |
| S01E15 | 2008-05-05 | | The Pork Chop Indeterminacy | |
| S01E14 | 2008-04-28 | | The Nerdvana Annihilation | |
| S01E13 | 2008-04-21 | | The Bat Jar Conjecture | |
| S01E12 | 2008-04-14 | | The Jerusalem Duality | |
| S01E11 | 2008-03-31 | | The Pancake Batter Anomaly | |
| S01E10 | 2008-03-24 | | The Loobenfeld Decay | |
| S01E09 | 2008-03-17 | | The Cooper-Hofstadter Polarization | |
| S01E08 | 2007-11-12 | | The Grasshopper Experiment | |
| S01E07 | 2007-11-05 | | The Dumpling Paradox | |
| S01E06 | 2007-10-29 | | The Middle Earth Paradigm | |
| S01E05 | 2007-10-22 | | The Hamburger Postulate | |
| S01E04 | 2007-10-15 | | The Luminous Fish Effect | |
| S01E03 | 2007-10-08 | | The Fuzzy Boots Corollary | |
| S01E02 | 2007-10-01 | | The Big Bran Hypothesis | |
| S01E01 | 2007-09-24 | | Pilot | |
