Where'd he go?

The Big Bang Theory - The Celebration Experimentation (S09E09)

Title	Season	Episode
Pilot	1	1
The Big Bran Hypothesis	1	2
The Fuzzy Boots Corollary	1	3
The Luminous Fish Effect	1	4
The Hamburger Postulate	1	5
The Middle Earth Paradigm	1	6
The Dumpling Paradox	1	7
The Grasshopper Experiment	1	8
The Cooper-Hofstadter Polarization	1	9
The Loobenfeld Decay	1	10
The Pancake Batter Anomaly	1	11
The Jerusalem Duality	1	12
The Bat Jar Conjecture	1	13
The Nerdvana Annihilation	1	14
The Pork Chop Indeterminacy	1	15
The Peanut Reaction	1	16
The Tangerine Factor	1	17
The Bad Fish Paradigm	2	1
The Codpiece Topology	2	2
The Barbarian Sublimation	2	3
The Griffin Equivalency	2	4
The Euclid Alternative	2	5
The Cooper-Nowitzki Theorem	2	6
The Panty Piñata Polarization	2	7
The Lizard-Spock Expansion	2	8
The White Asparagus Triangulation	2	9
The Vartabedian Conundrum	2	10
The Bath Item Gift Hypothesis	2	11
The Killer Robot Instability	2	12
The Friendship Algorithm	2	13
The Financial Permeability	2	14
The Maternal Capacitance	2	15
The Cushion Saturation	2	16
The Terminator Decoupling	2	17
The Work Song Nanocluster	2	18
The Dead Hooker Juxtaposition	2	19
The Hofstadter Isotope	2	20
The Vegas Renormalization	2	21
The Classified Materials Turbulence	2	22
The Monopolar Expedition	2	23
The Electric Can Opener Fluctuation	3	1
The Jiminy Conjecture	3	2
The Gothowitz Deviation	3	3
The Pirate Solution	3	4
The Creepy Candy Coating Corollary	3	5
The Cornhusker Vortex	3	6
The Guitarist Amplification	3	7
The Adhesive Duck Deficiency	3	8
The Vengeance Formulation	3	9
The Gorilla Experiment	3	10
The Maternal Congruence	3	11
The Psychic Vortex	3	12
The Bozeman Reaction	3	13
The Einstein Approximation	3	14
The Large Hadron Collision	3	15
The Excelsior Acquisition	3	16
The Precious Fragmentation	3	17
The Pants Alternative	3	18
The Wheaton Recurrence	3	19
The Spaghetti Catalyst	3	20
The Plimpton Stimulation	3	21
The Staircase Implementation	3	22
The Lunar Excitation	3	23
The Robotic Manipulation	4	1
The Cruciferous Vegetable Amplification	4	2
The Zazzy Substitution	4	3
The Hot Troll Deviation	4	4
The Desperation Emanation	4	5
The Irish Pub Formulation	4	6
The Apology Insufficiency	4	7
The 21-Second Excitation	4	8
The Boyfriend Complexity	4	9
The Alien Parasite Hypothesis	4	10
The Justice League Recombination	4	11
The Bus Pants Utilization	4	12
The Love Car Displacement	4	13
The Thespian Catalyst	4	14
The Benefactor Factor	4	15
The Cohabitation Formulation	4	16
The Toast Derivation	4	17
The Prestidigitation Approximation	4	18
The Zarnecki Incursion	4	19
The Herb Garden Germination	4	20
The Agreement Dissection	4	21
The Wildebeest Implementation	4	22
The Engagement Reaction	4	23
The Roommate Transmogrification	4	24
The Skank Reflex Analysis	5	1
The Infestation Hypothesis	5	2
The Pulled Groin Extrapolation	5	3
The Wiggly Finger Catalyst	5	4
The Russian Rocket Reaction	5	5
The Rhinitis Revelation	5	6
The Good Guy Fluctuation	5	7
The Isolation Permutation	5	8
The Ornithophobia Diffusion	5	9
The Flaming Spittoon Acquisition	5	10
The Speckerman Recurrence	5	11
The Shiny Trinket Maneuver	5	12
The Recombination Hypothesis	5	13
The Beta Test Initiation	5	14
The Friendship Contraction	5	15
The Vacation Solution	5	16
The Rothman Disintegration	5	17
The Werewolf Transformation	5	18
The Weekend Vortex	5	19
The Transporter Malfunction	5	20
The Hawking Excitation	5	21
The Stag Convergence	5	22
The Launch Acceleration	5	23
The Countdown Reflection	5	24
The Date Night Variable	6	1
The Decoupling Fluctuation	6	2
The Higgs Boson Observation	6	3
The Re-Entry Minimization	6	4
The Holographic Excitation	6	5
The Extract Obliteration	6	6
The Habitation Configuration	6	7
The 43 Peculiarity	6	8
The Parking Spot Escalation	6	9
The Fish Guts Displacement	6	10
The Santa Simulation	6	11
The Egg Salad Equivalency	6	12
The Bakersfield Expedition	6	13
The Cooper/Kripke Inversion	6	14
The Spoiler Alert Segmentation	6	15
The Tangible Affection Proof	6	16
The Monster Isolation	6	17
The Contractual Obligation Implementation	6	18
The Closet Reconfiguration	6	19
The Tenure Turbulence	6	20
The Closure Alternative	6	21
The Proton Resurgence	6	22
The Love Spell Potential	6	23
The Bon Voyage Reaction	6	24
The Hofstadter Insufficiency	7	1
The Deception Verification	7	2
The Scavenger Vortex	7	3
The Raiders Minimization	7	4
The Workplace Proximity	7	5
The Romance Resonance	7	6
The Proton Displacement	7	7
The Itchy Brain Simulation	7	8
The Thanksgiving Decoupling	7	9
The Discovery Dissipation	7	10
The Cooper Extraction	7	11
The Hesitation Ramification	7	12
The Occupation Recalibration	7	13
The Convention Conundrum	7	14
The Locomotive Manipulation	7	15
The Table Polarization	7	16
The Friendship Turbulence	7	17
The Mommy Observation	7	18
The Indecision Amalgamation	7	19
The Relationship Diremption	7	20
The Anything Can Happen Recurrence	7	21
The Proton Transmogrification	7	22
The Gorilla Dissolution	7	23
The Status Quo Combustion	7	24
The Locomotion Interruption	8	1
The Junior Professor Solution	8	2
The First Pitch Insufficiency	8	3
The Hook-up Reverberation	8	4
The Focus Attenuation	8	5
The Expedition Approximation	8	6
The Misinterpretation Agitation	8	7
The Prom Equivalency	8	8
The Septum Deviation	8	9
The Champagne Reflection	8	10
The Clean Room Infiltration	8	11
The Space Probe Disintegration	8	12
The Anxiety Optimization	8	13
The Troll Manifestation	8	14
The Comic Book Store Regeneration	8	15
The Intimacy Acceleration	8	16
The Colonization Application	8	17
The Leftover Thermalization	8	18
The Skywalker Incursion	8	19
The Fortification Implementation	8	20
The Communication Deterioration	8	21
The Graduation Transmission	8	22
The Maternal Combustion	8	23
The Commitment Determination	8	24
The Matrimonial Momentum	9	1
The Separation Oscillation	9	2
The Bachelor Party Corrosion	9	3
The 2003 Approximation	9	4
The Perspiration Implementation	9	5
The Helium Insufficiency	9	6
The Spock Resonance	9	7
The Mystery Date Observation	9	8
The Platonic Permutation	9	9
The Earworm Reverberation	9	10
The Opening Night Excitation	9	11
The Sales Call Sublimation	9	12
The Empathy Optimization	9	13
The Meemaw Materialization	9	14
The Valentino Submergence	9	15
The Positive Negative Reaction	9	16
The Celebration Experimentation	9	17
The Application Deterioration	9	18
The Solder Excursion Diversion	9	19
The Big Bear Precipitation	9	20
The Viewing Party Combustion	9	21
The Fermentation Bifurcation	9	22
The Line Substitution Solution	9	23
The Convergence Convergence	9	24
The Conjugal Conjecture	10	1
The Military Miniaturization	10	2
The Dependence Transcendence	10	3
The Cohabitation Experimentation	10	4
The Hot Tub Contamination	10	5
The Fetal Kick Catalyst	10	6
The Veracity Elasticity	10	7
The Brain Bowl Incubation	10	8
The Geology Elevation	10	9
The Property Division Collision	10	10
The Birthday Synchronicity	10	11