When delivery of another collectible leads to Penny's lashing out at Leonard, he decides it's time to give up his habit, much to his friends' protestation.
- Directed by
- Mark Cendrowski
- Written by
- Bill Prady, Steven Molaro, Stephen Engel
Guest stars
All episodes — Season 1
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S1 E1Pilot
Sep 24, 20077.423 min
Brilliant physicist roommates Leonard and Sheldon meet their new neighbor Penny, who begins showing them that as much as they know about science, they know little about actual living.
S1 E2The Big Bran Hypothesis
Oct 1, 20077.521 min
Leonard volunteers to sign for a package in an attempt to make a good impression on Penny, but when he enlists Sheldon for help, his attempt at chivalry goes terribly awry.
S1 E3The Fuzzy Boots Corollary
Oct 8, 20077.222 min
Leonard asks a woman out after he finds out that Penny is seeing someone.
S1 E4The Luminous Fish Effect
Oct 15, 20077.621 min
Sheldon's getting fired forces him to explore what life has to offer outside physics, leaving Leonard to take drastic action to snap his friend out of his funk.
S1 E5The Hamburger Postulate
Oct 22, 20077.620 min
Fearing he's wasting his time on Penny, Leonard ends up making a connection with Leslie.
S1 E6The Middle-Earth Paradigm
Oct 29, 20077.621 min
Penny hosts a Halloween party, putting Leonard, Sheldon, Wolowitz, and Koothrappali through a new test of their social skills.