The Big Bang Theory - 'The Propagation Proposition'
British iTunes Chart Performance

• Release date: 10 Jan 2019
• Chart debut: #28 (01 Mar 2019)
• Highest Position: #28 (01 Mar 2019)
• Most recent chart position: #88 (03 Apr 2019)
• Days on UK TV Episodes Chart: 14

'The Propagation Proposition' has charted in the following countries:
United Kingdom, United States, Germany, Canada and Australia.

Episode Synopsis: Penny’s old boyfriend, Zack (recurring guest star BRIAN THOMAS SMITH), and his wife want a baby, but when Zack is infertile, they ask Leonard to help. Meanwhile, Raj attempts to mend things with his ex-fiancée Anu.

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UK TV Episodes chart performance history for The Propagation Proposition

• The Jiminy Conjecture
• The Electric Can Opener Fluctuation
• The Gothowitz Deviation
• The Pirate Solution
• The Creepy Candy Coating Corollary
• The Cornhusker Vortex
• The Guitarist Amplification
• The Adhesive Duck Deficiency
• The Vengeance Formulation
• The Gorilla Experiment
• The Maternal Congruence
• The Wheaton Recurrence
• The Spaghetti Catalyst
• The Plimpton Stimulation
• The Psychic Vortex
• The Staircase Implementation
• The Bozeman Reaction
• The Lunar Excitation
• The Einstein Approximation
• Pilot
• The Large Hadron Collision
• The Excelsior Acquisition
• The Precious Fragmentation
• The Pants Alternative
• The Big Bran Hypothesis
• The Robotic Manipulation
• The Cruciferous Vegetable Amplification
• The Zazzy Substitution
• The Hot Troll Deviation
• The Desperation Emanation
• The Irish Pub Formulation
• The Middle Earth Paradigm
• The Apology Insufficiency
• The Dumpling Paradox
• The Fuzzyboots Corollary
• The 21 Second Excitation
• The Boyfriend Complexity
• The Bad Fish Paradigm
• The Barbarian Sublimination
• The Jerusalem Duality
• The Loobenfeld Decay
• The Tangerine Factor
• The Hamburger Postulate
• The Alien Parasite Hypothesis
• The Panty Pinata Polarization
• The Codpiece Topology
• The Justice League Recombination
• The Work Song Nanocluster
• The Bus Pants Utilization
• The Love Car Displacement
• The Thespian Catalyst
• The Benefactor Factor
• The Cohabitation Formulation
• The Toast Derivation
• The Prestidigitation Approximation
• The Zarnecki Incursion
• The Herb Garden Germination
• The Wildebeest Implementation
• The Agreement Dissection
• The Engagement Reaction
• The Roomate Transmorgrification
• The Skank Reflex Analysis
• The Infestation Hypothesis
• The Pulled Groin Extrapolation
• The Wiggly Finger Catalyst
• The Russian Rocket Reaction
• The Rhinitis Revelation
• The Good Guy Fluctuation
• The Isolation Permutation
• The Ornithophobia Diffusion
• The Flaming Spittoon Acquisition
• The Speckerman Recurrence
• The Grasshopper Experiment
• The Shiksa Indeterminacy
• The Pancake Batter Anomaly
• The Cooper-Hofstadter Polarization
• The Shiny Trinket Maneuver
• The Bat Jar Conjecture
• The Peanut Reaction
• The Nerdvana Annihilation
• The Recombination Hypothesis
• The Beta Test Initiation
• The Friendship Contraction
• The Vacation Solution
• The Rothman Disintegration
• The Werewolf Transformation
• The Weekend Vortex
• The Transporter Malfunction
• The Hawking Excitation
• The Stag Convergence
• The Launch Acceleration
• The Countdown Reflection
• The Date Night Variable
• The Decoupling Fluctuation
• The Higgs Boson Observation
• The Re-Entry Minimization
• The Holographic Excitation
• The Extract Obilteration
• The Habitation Configuration
• The 43 Peculiarity
• The Parking Spot Escalation
• The Fish Guts Displacement
• The Santa Simulation
• The Egg Salad Equivalency
• The Bakersfield Expedition
• The Cooper/Kripke Inversion
• The Spoil Alert Segmentation
• The Tangible Affection Proof
• The Monster Isolation
• The Contractual Obligation Implementation
• The Closet Reconfiguration
• The Tenure Turbulence
• The Closure Alternative
• The Proton Resurgence
• The Love Spell Potential
• The Bon Voyage Reaction
• The Hofstadter Insufficiency
• The Deception Verification
• The Scavenger Vortex
• The Raiders Minimization
• The Workplace Proximity
• The Romance Resonance
• The Proton Displacement
• The Itchy Brain Simulation
• The Thanksgiving Decoupling
• The Discovery Dissipation
• The Cooper Extraction
• The Hesitation Ramification
• The Occupation Recalibration
• The Convention Conundrum
• The Locomotive Manipulation
• The Table Polarization
• The Friendship Turbulence
• The Mommy Observation
• The Indecision Amalgamation
• The Relationship Diremption
• The Anything Can Happen Recurrence
• The Proton Transmogrification
• The Gorilla Dissolution
• The Status Quo Combustion
• The Locomotion Interruption
• The Junior Professor Solution
• The First Pitch Insufficiency
• The Hook-Up Reverberation
• The Focus Attenuation
• The Expedition Approximation
• The Misinterpretation Agitation
• The Prom Equivalency
• The Septum Deviation
• The Champagne Reflection
• The Clean Room Infiltration
• The Space Probe Disintegration
• The Anxiety Optimization
• The Troll Manifestation
• The Comic Book Store Regeneration
• The Intimacy Acceleration
• The Colonization Application
• The Leftover Thermalization
• The Skywalker Incursion
• The Fortification Implementation
• The Communication Deterioration
• The Graduation Transmission
• The Maternal Combustion
• The Commitment Determination
• The Matrimonial Momentum
• The Separation Oscillation
• The Bachelor Party Corrosion
• The 2003 Approximation
• The Perspiration Implementation
• The Helium Insufficiency
• The Spock Resonance
• The Mystery Date Observation
• The Platonic Permutation
• The Earworm Reverberation
• The Opening Night Excitation
• The Sales Call Sublimination
• The Empathy Optimization
• The Meemaw Materialization
• The Valentino Submergence
• The Positive Negative Reaction
• The Celebration Experimentation
• The Application Deterioration
• The Solder Excursion Diversion
• The Big Bear Precipitation
• The Viewing Party Combustion
• The Fermentation Bifurcation
• The Line Substitution Solution
• The Convergence Convergence
• The Conjugal Conjecture
• The Military Miniaturization
• The Dependence Transcendence
• The Cohabitation Experimentation
• The Hot Tub Contamination
• The Fetal Kick Catalyst
• The Veracity Elasticity
• The Brain Bowl Incubation
• The Geology Elevation
• The Property Division Collision
• The Birthday Synchronicity
• The Holiday Summation
• The Romance Recalibration
• The Emotion Detection Automation
• The Locomotion Reverberation
• The Allowance Evaporation
• The Comic-Con Conundrum
• The Escape Hatch Identification
• The Collaboration Fluctuation
• The Recollection Dissipation
• The Separation Agitation
• The Cognition Regeneration
• The Gyroscopic Collapse
• The Long Distance Dissonance
• The Proposal Proposal
• The Retraction Reaction
• The Relaxation Integration
• The Explosion Implosion
• The Collaboration Contamination
• The Proton Regeneration
• The Geology Methodology
• The Tesla Recoil
• The Bitcoin Entanglement
• The Confidence Erosion
• The Celebration Reverberation
• The Matrimonial Metric
• The Solo Oscillation
• The Separation Triangulation
• The Novelization Correlation
• The Neonatal Nomenclature
• The Athenaeum Allocation
• The Gates Excitation
• The Tenant Disassociation
• The Reclusive Potential
• The Comet Polarization
• The Monetary Insufficiency
• The Sibling Realignment
• The Bow Tie Asymmetry
• The Conjugal Configuration
• The Wedding Gift Wormhole
• The Procreation Calculation
• The Tam Turbulence
• The Planetarium Collision
• The Big Bang Theory Season 11 Recap
• The Imitation Perturbation
• The Grant Allocation Derivation
• The Consummation Deviation
• The Citation Negation
• The VCR Illumination
• The Paintball Scattering
• The Propagation Proposition
• The Confirmation Polarization
• The Meteorite Manifestation
• The Donation Oscillation
• The D & D Vortex
• The Conference Valuation
• The Laureate Accumulation
• The Inspiration Deprivation
• The Decision Reverberation
• The Plagiarism Schism
• The Maternal Conclusion
• The Stockholm Syndrome
• The Change Constant
• The Cushion Saturation
• The Monopolar Expedition
• Season 7, Episode 1: The Hofstadter Insufficiency
• The Griffin Equivalency
• The Killer Robot Instability
• Season 1, Episode 9: The Cooper-Hofstadter Polarization
• The Cooper-Nowitzki Theorem
• Season 4, Episode 5: The Desperation Emanation
• Season 5, Episode 22: The Stag Convergence
• Season 1, Episode 1: Pilot
• Season 2, Episode 18: The Work Song Nanocluster
• Season 7, Episode 18: The Mommy Observation
• Unraveling the Mystery: A Big Bang Farewell
• The Vartabedian Conundrum
• Season 12, Episode 24: The Stockholm Syndrome
• Season 5, Episode 5: The Russian Rocket Reaction
• Season 12, Episode 2: The Wedding Gift Wormhole
• Season 7, Episode 13: The Occupation Recalibration
• The Terminator Decoupling