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Sheldon's Mind Trick
Watch The Big Bang Theory Season 1 Episode 9
"The Cooper-Hofstadter Polarization"
Original Air Date:

After cleaning up after an internet experiment, Leonard discovers a letter in the trash can inviting the roommates to present some research they've done to a physics conference.

Penny Makes Raj Drink
Watch The Big Bang Theory Season 1 Episode 8
"The Grasshopper Experiment"
Original Air Date:

Raj is scared when his parents arrange a blind date for him with a girl from his childhood as he's still unable to women. Penny takes up bar tending to make some extra money.

Penny Plays Halo
Watch The Big Bang Theory Season 1 Episode 7
"The Dumpling Paradox"
Original Air Date:

Penny's slutty friend, Chrissy (Brooke D'Orsay) from Nebraska, is in town and is seduced by Wolowitz. The pair ends up taking over Penny's apartment, forcing her to sleep on Leonard and Sheldon's couch.

Leonard, Sheldon and Raj on the Couch
Watch The Big Bang Theory Season 1 Episode 6
"The Middle-Earth Paradigm"
Original Air Date:

The guys are invited to Penny's Halloween party and decide to go only when the idea of costumes are mentioned. At the party, Wolowitz and Leonard attempt to socialize until Penny's ex, Kurt, shows up and humiliates Leonard.

Penny Explains to Sheldon
Watch The Big Bang Theory Season 1 Episode 5
"The Hamburger Postulate"
Original Air Date:

While eating at the Cheesecake Factory where Penny works, the guys run into Leslie Winkle, the girl who previously rejected Leonard. Leslie asks Leonard to play in her string quartet as the cellist, but what she really wants is him.

Sheldon Gets Fired
Watch The Big Bang Theory Season 1 Episode 4
"The Luminous Fish Effect"
Original Air Date:

Sheldon is fired from his job at Caltech when he insults his boss Dr. Eric Gablehauser. Unemployed, Sheldon quickly spirals into depressions which Leonard tries to end by bringing over Sheldon's mother.

Leonard Asks Out Leslie
Watch The Big Bang Theory Season 1 Episode 3
"The Fuzzy Boots Corollary"
Original Air Date:

When Leonard witnesses Penny kissing a guy in front of their apartment, he is hurt and feels "rejected." The guys try to convince him to ask a girl out at work and when he's rejected by Leslie Winkle, he is even more depressed.

Sheldon and Leonard Deliver
Watch The Big Bang Theory Season 1 Episode 2
"The Big Bran Hypothesis"
Original Air Date:

When Sheldon and Leonard head over to Penny's apartment to drop off a package that arrived for her, Sheldon is bothered by how messy her apartment is.

Sheldon and Leonard
Watch The Big Bang Theory Season 1 Episode 1
Original Air Date:

In the pilot, life is about to change for two geniuses, Sheldon and Leonard when the beautiful Penny moves in across the hall. Leonard sees potential love interest in Penny and offers to retrieve her television from her ex-boyfriend.

TBBT Quotes

Howard: Attention people of Earth: Tonight, there will be two moons in the sky.

Sheldon: Why do you have the Chinese character for "soup" tattooed on your right buttock?
Penny: It's not "soup," it's "courage."
Sheldon: No it isn't. But I suppose it does take courage to demonstrate that kind of commitment to soup.
Penny: How'd you see it? You said you wouldn't look.
Sheldon: Sorry. As I told you, the hero always peeks.

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