Season 5
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.
All Episodes
S5 E1: The Skank Reflex Analysis
S5 E2: The Infestation Hypothesis
S5 E3: The Pulled Groin Extrapolation
S5 E4: The Wiggly Finger Catalyst
S5 E5: The Russian Rocket Reaction
S5 E6: The Rhinitis Revelation
S5 E7: The Good Guy Fluctuation
S5 E8: The Isolation Permutation
S5 E9: The Ornithophobia Diffusion
S5 E10: The Flaming Spittoon Acquisition
S5 E11: The Speckerman Recurrence
S5 E12: The Shiny Trinket Maneuver
S5 E13: The Recombination Hypothesis
S5 E14: The Beta Test Initiation
S5 E15: The Friendship Contraction
S5 E16: The Vacation Solution
S5 E17: The Rothman Disintegration
S5 E18: The Werewolf Transformation
S5 E19: The Weekend Vortex
S5 E20: The Transporter Malfunction
S5 E21: The Hawking Excitation
S5 E22: The Stag Convergence
S5 E23: The Launch Acceleration
S5 E24: The Countdown Reflection