Episode 1: Pilot; Written by Chuck Lorre & Bill Prady; Directed by James Burrows; 9/24/07
Brain doesn't have much of a chance against brawn when Leonard and Sheldon try to retrieve Penny's TV from her muscle-bound ex.
Episode 2: The Big Bran Hypothesis; Teleplay by Robert Cohen & Dave Goetsch; Story by Chuck Lorre & Bill Prady; Directed by Mark Cendrowski; 10/1/07
Leonard tries to keep Sheldon from fighting chaos in the universe, the center of which is Penny's messy apartment.
Episode 3: The Fuzzy Boots Corollary; Teleplay by Bill Prady & Steven Molaro; Story by Chuck Lorre; Directed by Mark Cendrowski; 10/8/07
Leonard has a date - with Penny. Too bad he hasn't told her about it.
Episode 4: The Luminous Fish Effect; Teleplay by David Litt & Lee Aronsohn; Story by Chuck Lorre & Bill Prady; Directed by Mark Cendrowski; 10/15/07
Fish nightlights. Hand-loomed ponchos. A visit from Mom. Things get freaky when Sheldon gets fired.
Episode 5: The Hamburger Postulate; Teleplay by Dave Goetsch & Steven Molaro; Story by Jennifer Glickman; Directed by Andrew D. Weyman; 10/22/07
Leonard's relationship with co-worker Leslie takes an unexpected turn, causing Sheldon to ponder the meaning of a tie on a doorknob.
Episode 6: The Middle Earth Paradigm
Teleplay by David Litt & Robert Cohen; Story by Dave Goetsch; Directed by Mark Cendrowski; 10/29/07
Leonard discovers "hobbit" is the wrong costume to wear to Penny's Halloween party when her ex-boyfriend shows up. Also, Sheldon is not a zebra.
Episode 7: The Dumpling Paradox; Teleplay by Lee Aronsohn & Jennifer Glickman; Story by Chuck Lorre & Bill Prady; Directed by Mark Cendrowski; 11/5/07
Wolowitz gets a girl. Penny beats Sheldon at Halo. Sometimes truth is stranger than science fiction.
Episode 8: The Grasshopper Experiment; Teleplay by Lee Aronsohn & Robert Cohen; Story by Dave Goetsch & Steven Molaro; Directed by Ted Wass; 11/12/07
Rajesh flips over his gorgeous blind date. But she only has eyes for Sheldon. Sheldon?!
Episode 9: The Cooper-Hofstadter Polarization; Teleplay by Chuck Lorre & Lee Aronsohn & Dave Goetsch; Story by Bill Rady & Stephen Engel; Directed by Joel Murray; 3/17/08
Leonard and Sheldon go from physics to fisticuffs when tempers flare at the symposium.
Episode 10: The Loobenfeld Decay
Teleplay by Billy Prady & Lee Aronsohn; Story by Chuck Lorre; Directed by Mark Cendrowski; 3/24/08
Sheldon cannot tell a lie. He has to tell at least seven. And they are all "un-unravelable!"
Episode 11: The Pancake Batter Anomaly; Teleplay by Bill Prady & Stephen Engel; Story by Chuck Lorre & Lee Aronsohn; Directed by Mark Cendrowski; 3/31/08
Everyone knows to head to the hills when Sheldon gets sick. Everyone except Penny, that is.
Episode 12: The Jerusalem Quality; Teleplay by Dave Goetsch & Stephen Molaro; Story by Jennifer Glickman & Stephen Engel; Directed by Mark Cendrowski; 4/14/08
When a child prodigy arrives on campus, Sheldon graciously sets out to destroy him.
Episode 13: The Bat Jar Conjecture; Teleplay by Bill Prady & Robert Cohen; Story by Stephen Engel & jennifer Glickman; Directed by Mark Cendrowski; 4/21/08
Sheldon is the MVP on the guys' Physics Bowl team: "Most Vain Physicist."
Episode 14: The Nerdvana Annihilation; Teleplay by Stephen Engel & Steven Molaro; Story by Bill Prady; Directed by Mark Cendrowski; 4/28/08
Leonard is thrilled with his prop Time Machine from the 1960 film, until Penny tells him it's unhip to play Morlocks and Elois.
Episode 15: The Pork Chop Indeterminacy; Teleplay by Lee Aronsohn & Bill Prady; Story by Chuck Lorre; Directed by Mark Cendrowski; 5/5/08
Sheldon's twin Missy is nothing like Sheldon... which makes her the other guys' newest dream girl.
Episode 16: The Peanut Reaction; Teleplay by Dave Goetsch & Steven Molaro; Story by Bill Prady & Lee Aronsohn; Directed by Mark Cendrowski; 5/12/08
Leonard's birthday finds Wolowitz and Leonard in the ER and Penny and Sheldon sharing a shopping trip from hell.
Episode 17: The Tangerine Factor; Story by Lee Aronsohn & Steven Molaro; Story by Chuck Lorre & Bill Prady; Directed by Mark Cendrowski; 5/14/08
Nervous about their first date, Leonard and Penny seek advice from the same romance-savvy sage: Sheldon.
