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Sheldon is upset when he realizes Leonard is the center of their group of friends.
Sheldon is upset when he realizes Leonard is the center of their group of friends.
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The Big Bang Theory
S1, EP15 "The Pork Chop Indeterminacy"Leonard devises a plan to eliminate his rivals when he, Wolowitz and Koothrappali all fall for Sheldon's twin sister, but his plan backfires when Sheldon decides to choose who his sister dates.
The Big Bang Theory
S11, EP7 "The Geology Methodology"Sheldon tries to keep his collaboration with Bert a secret; Penny and Bernadette coach Koothrappali on navigating his relationship with Ruchi.
The Big Bang Theory
S11, EP8 "The Tesla Recoil"Leonard and Wolowitz are furious when they learn Sheldon worked with the military behind their backs; Bernadette suspects Ruchi is trying to steal her job.
The Big Bang Theory
S11, EP9 "The Bitcoin Entanglement"Sheldon tries to teach the guys a lesson after they cut him out of a potentially valuable investment; a seven-year-old video reveals a secret about Leonard and Penny's relationship.
The Big Bang Theory
S5, EP2 "The Infestation Hypothesis"Amy is caught in the middle when Penny and Sheldon get into an argument over a pre-owned chair; Leonard tries to make his long-distance relationship more exciting.
The Big Bang Theory
S5, EP1 "The Skank Reflex Analysis"Penny worries that she has ruined her relationship with her friends; Sheldon takes over the paintball team.
