The Big Bang Theory

Season 5

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In season five, Penny and Leonard's relationship is relaunched in full "beta test" mode, while Sheldon, Howard, and Raj discover the feminine mystique is something that cannot be easily graphed or calculated. As Sheldon makes begrudging amendments to his "Relationship Agreement" with his "friend-who-happens-to-be-a-girl" Amy Farrah Fowler, Raj contemplates an arranged marriage, and Howard is all-systems-go for both is NASA space launch and wedding to the spirited Bernadette.
24 Episodes
  • The Skank Reflex Analysis
    The Skank Reflex AnalysisEpisode 1
  • The Infestation Hypothesis
    The Infestation HypothesisEpisode 2
  • The Pulled Groin Extrapolation
    The Pulled Groin ExtrapolationEpisode 3
  • The Wiggly Finger Catalyst
    The Wiggly Finger CatalystEpisode 4
  • The Russian Rocket Reaction
    The Russian Rocket ReactionEpisode 5
  • The Rhinitis Revelation
    The Rhinitis RevelationEpisode 6
  • The Good Guy Fluctuation
    The Good Guy FluctuationEpisode 7
  • The Isolation Permutation
    The Isolation PermutationEpisode 8
  • The Ornithophobia Diffusion
    The Ornithophobia DiffusionEpisode 9
  • The Flaming Spittoon Acquisition
    The Flaming Spittoon AcquisitionEpisode 10
  • The Speckerman Recurrence
    The Speckerman RecurrenceEpisode 11
  • The Shiny Trinket Maneuver
    The Shiny Trinket ManeuverEpisode 12
  • The Recombination Hypothesis
    The Recombination HypothesisEpisode 13
  • The Beta Test Initiation
    The Beta Test InitiationEpisode 14
  • The Friendship Contraction
    The Friendship ContractionEpisode 15
  • The Vacation Solution
    The Vacation SolutionEpisode 16
  • The Rothman Disintegration
    The Rothman DisintegrationEpisode 17
  • The Werewolf Transformation
    The Werewolf TransformationEpisode 18
  • The Weekend Vortex
    The Weekend VortexEpisode 19
  • The Transporter Malfunction
    The Transporter MalfunctionEpisode 20
  • The Hawking Excitation
    The Hawking ExcitationEpisode 21
  • The Stag Convergence
    The Stag ConvergenceEpisode 22
  • The Launch Acceleration
    The Launch AccelerationEpisode 23
  • The Countdown Reflection
    The Countdown ReflectionEpisode 24
Cast of Season 5
  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley CuocoPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRajesh Koothrappali
  • Melissa RauchBernadette Rostenkowski
  • Mayim BialikAmy Farrah Fowler

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