Big Bang Theory S01

The first season of The Big Bang Theory (S01), which premiered on September 24, 2007, laid the foundation for what would become one of the most successful sitcoms in television history. Spanning 17 episodes, the season introduces a group of socially awkward but brilliant scientists whose lives are upended when a beautiful, aspiring actress moves in across the hall. The Core Premise and Characters

: While the character is iconic now, Season 1 presents a slightly more grounded Sheldon—brilliant, obsessive, and socially oblivious, but not yet the "superhero" caricature he eventually becomes in later seasons. Leonard Hofstadter big bang theory s01

The Main Characters: A Brief Introduction The first season of The Big Bang Theory

• Plot: Leonard and Sheldon meet their new neighbor, Penny. Leonard invites her over for lunch, and she reveals she has just broken up with her boyfriend, Kurt. In an attempt to win her favor, Leonard offers to retrieve her TV from Kurt’s apartment.
• Highlight: The guys are humiliated by Kurt, leaving without the TV—and without their pants. This episode sets the tone for Leonard’s pursuit of Penny and Sheldon’s eccentricities (like his designated spot on the couch).

An unaired original pilot featured a much darker, bleaker version of the show with a different female lead named Katie, who was meaner to Leonard and Sheldon. Test audiences disliked her, leading to her removal. The Original Four: Plot: Leonard and Sheldon meet their new neighbor, Penny