The science of funny is back! At work, physicists Leonard and Sheldon and their geek pals conquer the cosmos. At home, real life from dating to driving conquers them. This season, Leonard gets a girl. So does Sheldon. (Sheldon?!) Howard drives the Mars Rover into a ditch. Raj woos a terminator. Gorgeous girl-next-door Penny falls under the spell of Age of Conan. And super-smart, überconfident Leslie Winkle reduces mere men to spineless jellyfish. Twenty-three laugh-filled episodes from series creators Chuck Lorre (Two and a Half Men) and Bill Prady (Dharma & Greg) and a talented cast with astronomical comedy I.Q.s show why Big Bang is such a big hit.

Episodes:
The Bad Fish Paradigm
The Codpiece Topology
The Barbarian Sublimation
The Griffin Equivalency
The Euclid Alternative
The Cooper-Nowitzki Theorem
The Panty Piñata Polarization
The Lizard-Spock Expansion
The White Asparagus Triangulation
The Vartabedian Conundrum
The Bath Item Gift Hypothesis
The Killer Robot Instability
The Friendship Algorithm
The Financial Permeability
The Maternal Capacitance
The Cushion Saturation
The Terminator Decoupling
The Work Song Nanocluster
The Dead Hooker Juxtaposition
The Hofstadter Isotope
The Vegas Renormalization
The Classified Materials Turbulence
The Monopolar Expedition