The Big Bang Theory

Two nerdy physicists share an apartment and an unlikely friendship with their beautiful neighbor with whom one of them is infatuated. Like the universe after the big bang, the show's popularity expanded, thanks to breakout star Jim Parsons, along with the chemistry among the friends and the developing romance between Leonard and Penny. The addition of M (more…)

Provider: Eastern (ET) Change
Tue Mar 20 7:00pm
The Zazzy Substitution(Season 4, Episode 3) TBS

Everyone worries for Sheldon, who begins searching for non-human companionship.

I’ll Watch1206 Watching
Tue Mar 20 7:30pm
The Hot Troll Deviation(Season 4, Episode 4) TBS

Wolowitz is embarrassed when a secret of his is revealed; and Sheldon and Raj battle at work.

I’ll Watch1117 Watching
Tue Mar 20 8:00pm
The Desperation Emanation(Season 4, Episode 5) TBS

Sheldon meets Amy's mother and comes to the realization that he no longer wants to see Amy; and Leonard realizes that everyone is in a relationship except for him.

I’ll Watch1930 Watching
Tue Mar 20 8:30pm
The Irish Pub Formulation(Season 4, Episode 6) TBS

Raj's sister visits and inadvertently causes trouble for the friends.

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Tue Mar 20 9:00pm
The Apology Insufficiency(Season 4, Episode 7) TBS

Howard baffles Sheldon when he won't accept his apology; and an FBI agent (Eliza Dushku) interviews the guys for Howard's security clearance.

I’ll Watch1549 Watching
Tue Mar 20 9:30pm
The 21-Second Excitation(Season 4, Episode 8) TBS

The guys camp out in a line hoping to see an anticipated movie, while Penny and Bernadette arrange Amy's first slumber party. Wil Wheaton has a cameo.

I’ll Watch2580 Watching
Tue Mar 20 10:00pm
The Boyfriend Complexity(Season 4, Episode 9) TBS

Penny asks Leonard to lie to her visiting father (Keith Carradine), while Howard, Raj and Bernadette spend all night looking through a telescope.

I’ll Watch1651 Watching
Wed Mar 21 7:00pm
The Alien Parasite Hypothesis(Season 4, Episode 10) TBS

Amy is attracted to Penny's ex-boyfriend; and Raj and Howard argue about which of them would be a better superhero.

I’ll Watch2204 Watching
Wed Mar 21 7:30pm
The Justice League Recombination(Season 4, Episode 11) TBS

The guys borrow Penny's new boyfriend when they enter a costume contest as members of the Justice League.

I’ll Watch3397 Watching
Wed Mar 21 8:00pm
The Bus Pants Utilization(Season 4, Episode 12) TBS

Leonard has a great idea for a smartphone app, and it causes friction with Sheldon.

I’ll Watch3290 Watching
Wed Mar 21 8:30pm
The Love Car Displacement(Season 4, Episode 13) TBS

Howard is jealous when Bernadette runs into her old boyfriend at a science event they're attending.

I’ll Watch1801 Watching
Wed Mar 21 9:00pm
The Thespian Catalyst(Season 4, Episode 14) TBS

Sheldon wants acting lessons from Penny, hoping they will make him a better teacher.

I’ll Watch1815 Watching
Wed Mar 21 9:30pm
The Benefactor Factor(Season 4, Episode 15) TBS

Leonard has a moral crisis when he meets a wealthy widow who is willing to help the university.

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Wed Mar 21 10:00pm
The Cohabitation Formulation(Season 4, Episode 16) TBS

Howard contemplates a serious decision in his relationship with Bernadette; and Leonard and Raj's sister start seeing each other again.

I’ll Watch2479 Watching
Sat Mar 24 4:00pm
The Toast Derivation(Season 4, Episode 17) TBS

Sheldon is in crisis when he realizes he's not the epicenter of the group, so, he decides to find new friends.

I’ll Watch1897 Watching
Sat Mar 24 4:30pm
The Prestidigitation Approximation(Season 4, Episode 18) TBS

Leonard has a tough choice to make when Priya asks him to stop spending time with Penny, forcing him to choose between the two women; and Howard keeps pestering Sheldon with a magic trick.

I’ll Watch3472 Watching
Sun Mar 25 9:00pm
The Zarnecki Incursion(Season 4, Episode 19) TBS

The guys become sleuths to find out who hacked Sheldon's online-game account.

I’ll Watch2741 Watching
Sun Mar 25 9:30pm
The Herb Garden Germination(Season 4, Episode 20) TBS

Sheldon and Amy spread gossip as part of an experiment; and Howard and Bernadette's relationship gets serious. Physicist Brian Greene has a cameo.

I’ll Watch1754 Watching
Sun Mar 25 10:00pm
The Agreement Dissection(Season 4, Episode 21) TBS

Priya uses her legal expertise to rip apart Sheldon's roommate agreement, and the women take the flustered Sheldon out dancing.

I’ll Watch1785 Watching
Sun Mar 25 10:30pm
The Wildebeest Implementation(Season 4, Episode 22) TBS

Raj makes an attempt to cure his phobia of talking to women; and Penny spies on Leonard and Priya with the help of Bernadette.

I’ll Watch3109 Watching
Tue Mar 27 7:00pm
The Engagement Reaction(Season 4, Episode 23) TBS

Howard finally tells his mother that he's marrying Bernadette, and the news puts her in the hospital.

I’ll Watch1822 Watching
Tue Mar 27 7:30pm
The Roommate Transmogrification(Season 4, Episode 24) TBS

In the fourth-season finale, Raj moves in with Sheldon when Leonard and Priya's "Star Trek" bedroom fantasy is too much for him; and the guys tease Howard when Bernadette gets her PhD, making Howard the only one without a doctorate.

I’ll Watch3304 Watching
Tue Mar 27 8:00pm
The Skank Reflex Analysis(Season 5, Episode 1) TBS

In the fifth-season opener, Penny hits a low point when she realizes what she's done by sleeping with Raj; and Sheldon becomes the leader of the paintball team.

I’ll Watch3144 Watching
Tue Mar 27 8:30pm
The Infestation Hypothesis(Season 5, Episode 2) TBS

Penny and Sheldon clash, and Amy is caught in the middle of their battle; and Leonard looks for ways to keep his long-distance romance with Priya alive.

I’ll Watch2191 Watching
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  • Premiered: September 24, 2007
  • Rating: TV-PG
  • Premise: Two nerdy physicists share an apartment and an unlikely friendship with their beautiful neighbor with whom one of them is infatuated. Like the universe after the big bang, the show's popularity expanded, thanks to breakout star Jim Parsons, along with the… (more)

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