The Big Bang Theory dives into the world of two brilliant yet socially awkward physicists — Leonard and Sheldon — who live as roommates in Pasadena, California. Their lives get turned upside‑down when Penny, the outgoing aspiring actress and waitress, moves in across the hall. Together with their quirky friends Howard and Raj, they navigate friendship, romance, geek culture, pop‑science references and everyday awkwardness with laughter and heart.

📌 Series Details

• Created by: Chuck Lorre and Bill Prady. Wikipedia+1
• Original network: CBS. EPGuides+1
• Original run (entire series): September 24 2007 – May 16 2019. Wikipedia+1
• Seasons 1–5 episode counts & air years:
  • Season 1 (2007‑08): 17 episodes. The Big Bang Theory Site+1
  • Season 2 (2008‑09): 23 episodes. The Big Bang Theory Site
  • Season 3 (2009‑10): 23 episodes. The Big Bang Theory Site
  • Season 4 (2010‑11): 24 episodes. The Big Bang Theory Site+1
  • Season 5 (2011‑12): 24 episodes. Wikipedia+1
• Runtime per episode: approximately 18‑22 minutes. Wikipedia
• Production companies: Chuck Lorre Productions, Warner Bros. Television. Wikipedia
• Camera setup: Multi‑camera. Wikipedia
• Key cast:
  • Leonard Hofstadter: Johnny Galecki
  • Sheldon Cooper: Jim Parsons
  • Penny (surname later revealed): Kaley Cuoco
  • Howard Wolowitz: Simon Helberg
  • Rajesh “Raj” Koothrappali: Kunal Nayyar Wikipedia+1
• Setting: Pasadena, California, USA (characters working at California Institute of Technology). Wikipedia
• Notable: Episode titles mostly begin with “The” and reference scientific principles, theories or experiments. Warner Bros. Fandom+1
• Achievements: During Season 5 for example, the series was nominated for Outstanding Comedy Series at the 64th Primetime Emmy Awards. Wikipedia

External Link to Source:

• Wikipedia: The Big Bang Theory Wikipedia
• Episode list: List of The Big Bang Theory episodes Wikipedia