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- Season 1 overviewSep 24, 2007-May 19, 200817 episodesSeason 1 episodes1. Pilot Sep 24, 2007
- Leonard likes new neighbor Penny, but his roommate thinks he is chasing an impossible dream.
- 2. The Big Bran Hypothesis Oct 1, 2007
- Leonard volunteers to sign for a package, hoping to make a good impression on Penny.
- 3. The Fuzzy Boots Corollary Oct 8, 2007
- Unhappy that Penny is seeing someone, Leonard summons the courage to ask another woman out.
- 4. The Luminous Fish Effect Oct 15, 2007
- Getting fired gives Sheldon the opportunity to explore life beyond physics.
- 5. The Hamburger Postulate Oct 22, 2007
- Leonard, trying to get over Penny, has an unexpected encounter with a fellow scientist.
- 6. The Middle Earth Paradigm Oct 29, 2007
- Leonard, Sheldon, Wolowitz and Koothrappali attend Penny's Halloween party.
- 7. The Dumpling Paradox Nov 5, 2007
- Penny sleeps on Leonard and Sheldon's couch when Wolowitz takes over her apartment.
- 8. The Grasshopper Experiment Nov 12, 2007
- On a blind date, Koothrappali discovers that he can talk to the opposite sex after a few drinks.
- 9. The Cooper-Hofstadter Polarization Mar 17, 2008
- Penny tries to mediate when Sheldon and Leonard disagree about a physics conference.
- 10. The Loobenfeld Decay Mar 24, 2008
- Leonard and Sheldon try to avoid seeing Penny perform after hearing her sing.
- 11. The Pancake Batter Anomaly Mar 31, 2008
- Leonard and the boys avoid Sheldon when he gets sick, leaving Penny to nurse him back to health.
- 12. The Jerusalem Duality Apr 14, 2008
- Sheldon and Leonard look for a way to derail a 15-year-old physics prodigy's research.
- 13. The Bat Jar Conjecture Apr 21, 2008
- The guys kick Sheldon off the Physics Bowl team and bring his nemesis aboard.
- 14. The Nerdvana Annihilation Apr 28, 2008
- Penny tells the guys their obsession with comics and toys is pathetic.
- 15. The Pork Chop Indeterminacy May 5, 2008
- Leonard, Wolowitz and Koothrappali fall for Sheldon's twin sister.
- 16. The Peanut Reaction May 12, 2008
- Penny learns that Leonard does not celebrate birthdays, so she plans a surprise party.
- 17. The Tangerine Factor May 19, 2008
- Leonard finally works up the courage to ask Penny out on a date, and both ask Sheldon for advice.
4 days ago · Simon Helberg and Kunal Nayyar tried to get the same amount but left the table with $750,000. In 2017, all of the stars agreed to take a pay cut of $100,000 per episode so that Melissa Rauch ...
2 days ago · About 13.8 billion years ago, the entire cosmos consisted of a tiny, hot, dense ball of energy that suddenly exploded. That’s how everything began, according to the standard scientific story of ...
4 days ago · The Big Bang Theory is celebrated as one of the best sitcoms of all time, showcasing the depth of nerd culture and delivering iconic moments. Throughout its 12-season run, the stars formed lasting ...
4 days ago · One Field to Rule Them All. Theorists explain why cosmic inflation might appear to be driven by a single inflaton field, even if it had actually been driven by two or more such fields. Cosmic inflation—a theorized exponential expansion of space in the early Universe—offers solutions to important cosmological puzzles.
5 days ago · What is the Big Band Theory? A theory that 14 billions years ago all matter and energy in the universe was compressed into an extremely small volume that exploded and began expanding in all directions.
5 days ago · The solar nebula spun faster and faster and flattened into a rotating disk. Most of the gas was pulled toward the center, where it became hot and dense, forming the Sun. There is a theory that gravity could pull galaxies back together, causing a reverse big bang.
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