Sheldon's Shirts from Season 06 of The Big Bang Theory

Season 06, Episode 01: "The Date Night Variable"

'Vintage Batman Logo' Shirt	'Kryptonian Translator' Shirt

Season 06, Episode 02: "The Decoupling Fluctuation"

Orange 'Aquaman' Shirt	BDG Angled/Striped Shirt

Season 06, Episode 03: "The Higgs Boson Observation"

'Flash Crimson Comet' Shirt	'Vitruvian Superman' Shirt	'AV Club' Shirt

Season 06, Episode 04: "The Re-Entry Minimization"

'Astrosmash' Shirt	'73' Shirt

Season 06, Episode 05: "The Holographic Excitation"

'Monsters' Shirt	Flash Logo with Wings Shirt	'Quantum' Shirt

Season 06, Episode 06: "The Extract Obliteration"

Yellow, Round Graphic Shirt	'Rubik's Cube Melting' Shirt	'Kablaam' Shirt	'Color Bars' Shirt
Spiders & Bugs Shirt

Season 06, Episode 07: "The Habitation Configuration"

Green Lantern Shirt	Recycled Tree Shirt	'Flash Logo/Distressed Black' Shirt	'Hawkman' Shirt

Season 06, Episode 08: "The 43 Peculiarity"

'Superman DNA' Shirt	Robot Shirt	'Space Invaders' Shirt	'Vitruvian Superman' Shirt

Season 06, Episode 09: "The Parking Spot Escalation"

'Retro Flash' Shirt	'73' Shirt	'Astrosmash' Shirt	'Color Bars' Shirt
'Opti Blocks' Shirt

Season 06, Episode 10: "The Fish Guts Displacement"

'Green Arrow Shield Bullseye' Shirt	'The Flash' Athletic Shirt	'Nanotubes' Shirt

Season 06, Episode 11: "The Santa Simulation"

'Man-Bot' Shirt	'Vitruvian Superman' Shirt

Season 06, Episode 12: "The Egg Salad Equivalency"

'Rubik's Cube Melting' Shirt	Green Lantern Shirt	'Shoot 'Em Up' Shirt	'd20 I Win' Shirt
'Screens and Lenses Work Magic' Shirt

Season 06, Episode 13: "The Bakersfield Expedition"

Green Lantern Shirt

Season 06, Episode 14: "The Cooper/Kripke Inversion"

'Astrosmash' Shirt	'Quantum' Shirt	BDG Dark Striped Shirt	'Vitruvian Superman' Shirt
Orange 'Aquaman' Shirt

Season 06, Episode 15: "The Spoiler Alert Segmentation"

Vintage Green Flash Shirt	'Batman and Robin Action Duo' Shirt	'AV Club' Shirt

Season 06, Episode 16: "The Tangible Affection Proof"

'Greatest American Hero' Shirt	'Green Lantern Formula' Shirt

Season 06, Episode 17: "The Monster Isolation"

'Superman Athletic/Distressed' Shirt	'Nanotubes' Shirt

Season 06, Episode 18: "The Contractual Obligation Implementation"

Robot Shirt	Plaid Blazer

Season 06, Episode 19: "The Closet Reconfiguration"

'73' Shirt	Green Lantern Shirt	Plaid Blazer

Season 06, Episode 20: "The Tenure Turbulence"

'Screens and Lenses Work Magic' Shirt	'd20 I Win' Shirt	'Superman DNA' Shirt	'Flash Logo/Distressed Black' Shirt

Season 06, Episode 21: "The Closure Alternative"

Orange 'Aquaman' Shirt	'Flash Equation' Shirt	Distressed Superman Logo Shirt

Season 06, Episode 22: "The Proton Resurgence"

'Kryptonian Translator' Shirt	'Space Invaders' Shirt	'Atmospheric CO2' Shirt

Season 06, Episode 23: "The Love Spell Potential"

'Superman DNA' Shirt

Season 06, Episode 24: "The Bon Voyage Reaction"

Orange 'Aquaman' Shirt	'Man-Bot' Shirt	'Run Flash Run' Shirt	'Quantum' Shirt