Sort by Popularity - Most Popular Movies and TV Shows tagged with keyword "theoretical-physicist"

51. The Big Bang Theory (2007–2019)
Episode: The Bad Fish Paradigm (2008)

TV-PG | 22 min | Comedy, Romance

Leonard becomes concerned when his date with Penny ends abruptly and she starts blowing him off. When told the truth, Sheldon would rather move out than keep Penny's reasons a secret from Leonard.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,688

52. The Big Bang Theory (2007–2019)
Episode: The Monopolar Expedition (2009)

TV-PG | 21 min | Comedy, Romance

Penny gets upset when she finds out Leonard and the guys plan to work at the North Pole for the summer.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,137

53. The Big Bang Theory (2007–2019)
Episode: The Electric Can Opener Fluctuation (2009)

TV-14 | 21 min | Comedy, Romance

After returning from the North Pole, a conflict among the guys sends Sheldon back to Texas and interferes with Leonard's reunion with Penny.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,418

54. History of the Universe (2021– )
Episode: What Was the Big Bang? (2021)

29 min | Documentary

The concept of the Big Bang began as early as 1277 with Siger of Brabant who paid for the idea with his life. Described here are the evolving ideas and controversy about what the Big Band ... See full summary »

Star: David Kelly

55. The Big Bang Theory (2007–2019)
Episode: The Gothowitz Deviation (2009)

TV-PG | 20 min | Comedy, Romance

Sheldon attempts to covertly alter Penny's habits, while Howard and Raj try their luck meeting women at a Goth-style club.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,142

56. The Big Bang Theory (2007–2019)
Episode: The Jiminy Conjecture (2009)

TV-PG | 21 min | Comedy, Romance

Leonard and Penny's first night together goes awkwardly. Sheldon and Howard wager on the species of a cricket.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,043

57. The Big Bang Theory (2007–2019)
Episode: The Cornhusker Vortex (2009)

TV-PG | 20 min | Comedy, Romance

Leonard tries to learn about football to fit in with Penny's friends. Meanwhile, a loss in a kite war threatens to end Raj and Howard's friendship.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,911

58. The Big Bang Theory (2007–2019)
Episode: The Pirate Solution (2009)

TV-PG | 30 min | Comedy, Romance

When Raj has to find a new job or be sent back to India, Sheldon's solution leaves Leonard and Penny dealing with Howard as the third wheel.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,051

59. The Big Bang Theory (2007–2019)
Episode: The Creepy Candy Coating Corollary (2009)

TV-PG | 20 min | Comedy, Romance

Leonard is forced to ask Penny to set Howard up with one of her friends, while Sheldon seeks payback against sci-fi star Wil Wheaton.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,160

60. The Big Bang Theory (2007–2019)
Episode: The Guitarist Amplification (2009)

TV-PG | 20 min | Comedy, Romance

Sheldon is caught in the middle when Leonard and Penny argue about Penny's friend staying at her apartment.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,933

61. The Big Bang Theory (2007–2019)
Episode: The Adhesive Duck Deficiency (2009)

TV-PG | 21 min | Comedy, Romance

Penny is forced to turn to Sheldon for help when she dislocates her shoulder in the bathtub. Meanwhile, the rest of the guys accidentally get stoned in the desert while waiting for a meteor shower.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 5,560

62. The Big Bang Theory (2007–2019)
Episode: The Vengeance Formulation (2009)

TV-PG | 19 min | Comedy, Romance

Sheldon plans revenge after Kripke humiliates him on the radio. Howard develops doubts about his relationship with Bernadette.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,131

63. The Big Bang Theory (2007–2019)
Episode: The Gorilla Experiment (2009)

TV-PG | 21 min | Comedy, Romance

Sheldon attempts to help Penny understand physics to impress Leonard, while Howard becomes jealous when Bernadette takes an interest in Leonard's research.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,199

64. The Big Bang Theory (2007–2019)
Episode: The Maternal Congruence (2009)

TV-PG | 20 min | Comedy, Romance

Leonard's mother makes a visit to his dismay and Sheldon's delight.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,091

65. The Big Bang Theory (2007–2019)
Episode: The Psychic Vortex (2010)

Not Rated | 20 min | Comedy, Romance

Raj talks Sheldon into being his wingman at a university mixer. Leonard has trouble dealing with Penny consulting a psychic.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,022

66. The Big Bang Theory (2007–2019)
Episode: The Bozeman Reaction (2010)

TV-PG | 20 min | Comedy, Romance

When their apartment is robbed, Leonard and Sheldon turn to Howard and Raj to create a state-of-the-art security system.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,921

67. The Big Bang Theory (2007–2019)
Episode: The Einstein Approximation (2010)

TV-PG | 20 min | Comedy, Romance

Sheldon wreaks havoc when he is stumped by a difficult physics question.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,271

68. The Big Bang Theory (2007–2019)
Episode: The Large Hadron Collision (2010)

TV-PG | 21 min | Comedy, Romance

When Leonard is offered a trip to Switzerland on Valentine's Day to visit the CERN laboratory, Sheldon uses any and all means to be his guest instead of Penny.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,857

69. The Big Bang Theory (2007–2019)
Episode: The Excelsior Acquisition (2010)

TV-PG | 21 min | Comedy, Romance

Sheldon misses an opportunity to get Stan Lee's autograph because he has to make an appearance in traffic court.

Director: Peter Chakos | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,962

70. The Big Bang Theory (2007–2019)
Episode: The Precious Fragmentation (2010)

TV-PG | 20 min | Comedy, Romance

The guys' friendship is threatened when they find a ring from the "Lord of the Rings" trilogy.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,196

71. The Big Bang Theory (2007–2019)
Episode: The Wheaton Recurrence (2010)

TV-PG | 21 min | Comedy, Romance

Sheldon takes on Wil Wheaton in a game of bowling. Leonard and Penny's relationship comes to a crossroad.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,852

72. The Big Bang Theory (2007–2019)
Episode: The Pants Alternative (2010)

TV-PG | 21 min | Comedy, Romance

Sheldon seeks help from the rest of the gang in overcoming his fear of public speaking when he receives an award.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,125

73. The Big Bang Theory (2007–2019)
Episode: The Lunar Excitation (2010)

TV-PG | 20 min | Comedy, Romance

Penny has a night of angry, drunken sex with Leonard, much to his confusion. Meanwhile, Howard and Raj search for Sheldon's perfect match online.

Director: Peter Chakos | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,212

74. The Big Bang Theory (2007–2019)
Episode: The Spaghetti Catalyst (2010)

TV-PG | 20 min | Comedy, Romance

Sheldon is forced to go behind Leonard's back to spend time with Penny following their breakup.

Director: Anthony Rich | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,851

75. The Big Bang Theory (2007–2019)
Episode: The Robotic Manipulation (2010)

TV-PG | 21 min | Comedy, Romance

Penny ends up tagging along on Sheldon's first ever date with Amy, while Howard finds an unusual use for a robotic arm.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,692

76. The Big Bang Theory (2007–2019)
Episode: The Alien Parasite Hypothesis (2010)

TV-PG | 20 min | Comedy, Romance

Amy finds she has sexual feelings for Penny's ex-boyfriend Zack, while Raj and Howard try to prove who would be the better superhero.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,767

77. The Big Bang Theory (2007–2019)
Episode: The Justice League Recombination (2010)

TV-PG | 20 min | Comedy, Romance

The guys enter a costume contest as members of the Justice League and convince Penny and Zack to join them.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,339

78. The Big Bang Theory (2007–2019)
Episode: The Bus Pants Utilization (2011)

TV-PG | 21 min | Comedy, Romance

Leonard has an idea for a new smartphone app and asks the guys for help, however Sheldon tries to take over the project, and Leonard fires him.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,766

79. The Big Bang Theory (2007–2019)
Episode: The Love Car Displacement (2011)

TV-PG | 21 min | Comedy, Romance

Chaos ensues when the gang spend the weekend together at a science convention.

Director: Anthony Rich | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,053

80. The Big Bang Theory (2007–2019)
Episode: The Thespian Catalyst (2011)

TV-PG | 21 min | Comedy, Romance

To improve his skills as an instructor, Sheldon asks Penny to give him acting lessons. Meanwhile, Raj begins having impure fantasies about Bernadette.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,831

81. The Big Bang Theory (2007–2019)
Episode: The Benefactor Factor (2011)

TV-PG | 20 min | Comedy, Romance

To secure needed funding for the university, Sheldon convinces Leonard to get friendly with a wealthy benefactor.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,778

82. The Big Bang Theory (2007–2019)
Episode: The Cohabitation Formulation (2011)

TV-PG | 21 min | Comedy, Romance

Bernadette makes Howard choose between herself and his mother, while Penny and Raj become upset when Priya returns to town and resumes her relationship with Leonard.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,660

83. The Big Bang Theory (2007–2019)
Episode: The Toast Derivation (2011)

TV-PG | 22 min | Comedy, Romance

Sheldon becomes concerned when everybody begins to hang out at Raj's apartment and discovers Leonard is the center of the group.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,691

84. The Big Bang Theory (2007–2019)
Episode: The Prestidigitation Approximation (2011)

TV-PG | 21 min | Comedy, Romance

Priya forces Leonard to choose between a relationship with her or a friendship with Penny. A magic trick by Howard has Sheldon fooled.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,872

85. The Big Bang Theory (2007–2019)
Episode: The Zarnecki Incursion (2011)

TV-PG | 23 min | Comedy, Romance

The guys go all out to help Sheldon find the person responsible for hacking his online gaming account, while the girls' hatred for Priya increases.

Director: Peter Chakos | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,761

86. The Big Bang Theory (2007–2019)
Episode: The Cruciferous Vegetable Amplification (2010)

TV-PG | 21 min | Comedy, Romance

When Sheldon calculates the technology to download his consciousness into a robot won't be invented soon enough, he desperately tries to find a way to increase his lifespan.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,196

87. The Big Bang Theory (2007–2019)
Episode: The Herb Garden Germination (2011)

TV-PG | 21 min | Comedy, Romance

Sheldon and Amy secretly experiment on the gang by spreading rumors when they hear that Bernadette is thinking about breaking up with Howard.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,745

88. The Big Bang Theory (2007–2019)
Episode: The Agreement Dissection (2011)

TV-PG | 21 min | Comedy, Romance

When Priya finds a loophole in the roommate agreement to throw Sheldon out for the night, Penny, Amy and Bernadette take him to a nightclub.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,840

89. The Big Bang Theory (2007–2019)
Episode: The Wildebeest Implementation (2011)

TV-PG | 21 min | Comedy, Romance

Sheldon invents a three-player chess game, Penny and Amy use Bernadette to spy on Leonard and Priya, and Raj tries a new drug to treat his social anxiety.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,634

90. The Big Bang Theory (2007–2019)
Episode: The Engagement Reaction (2011)

TV-PG | 20 min | Comedy, Romance

Howard believes that his mom suffered a heart attack because he told her that he's marrying Bernadette, Sheldon freaks out over germs, and Penny and Priya compare notes on Leonard.

Director: Howard Murray | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,703

91. The Big Bang Theory (2007–2019)
Episode: The Zazzy Substitution (2010)

TV-PG | 21 min | Comedy, Romance

Following his 'breakup' with Amy, the gang become concerned with Sheldon's obsessive search for non-human companionship and call his mother to intervene.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,958

92. The Big Bang Theory (2007–2019)
Episode: The Hot Troll Deviation (2010)

TV-PG | 20 min | Comedy, Romance

Howard tries to get Penny's help in winning back Bernadette, but first has to confess the embarrassing reason why they broke up in the first place. Raj and Sheldon clash over a desk.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,948

93. The Big Bang Theory (2007–2019)
Episode: The Desperation Emanation (2010)

TV-PG | 21 min | Comedy, Romance

Sheldon is scared that he is in a relationship when Amy asks him to meet her mother, and Leonard asks Howard and Bernadette to set him up because he is the only person in the group without a girlfriend.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,787

94. The Big Bang Theory (2007–2019)
Episode: The Irish Pub Formulation (2010)

TV-PG | 25 min | Comedy, Romance

Leonard tries to keep everyone from finding out that he spent the night with Raj's sister, but Sheldon finds out and concocts an elaborate story to help him keep the secret from Raj.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,859

95. The Big Bang Theory (2007–2019)
Episode: The Apology Insufficiency (2010)

TV-PG | 21 min | Comedy, Romance

An FBI agent interviews the guys when Howard needs to obtain a security clearance.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,890

96. The Big Bang Theory (2007–2019)
Episode: The 21-Second Excitation (2010)

TV-PG | 19 min | Comedy, Romance

The guys camp out all night waiting to see an extended cut of Indiana Jones, while Amy joins in on girls' night with Penny and Bernadette.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 3,899

97. The Big Bang Theory (2007–2019)
Episode: The Boyfriend Complexity (2010)

TV-PG | 21 min | Comedy, Romance

Penny asks Leonard to pose as her boyfriend when her father visits. Howard, Raj and Bernadette have an awkward encounter when they spend the evening together.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,077

98. The Big Bang Theory (2007–2019)
Episode: The Plimpton Stimulation (2010)

TV-PG | 21 min | Comedy, Romance

Chaos ensues when a nymphomaniac physicist visiting Sheldon hooks up with Leonard.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 4,119

99. The Big Bang Theory (2007–2019)
Episode: The Staircase Implementation (2010)

TV-PG | 20 min | Comedy, Romance

Leonard tells Penny about how he and Sheldon became roommates and what happened to the elevator.

Director: Mark Cendrowski | Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg

Votes: 5,361

100. Through the Wormhole (2010–2017)
Episode: The Riddle of Black Holes (2010)

TV-PG | 45 min | Documentary

After reviewing theories about how black holes form and how they were detected this program looks at their counterintuitive behavior that makes them seem so bizarre.

Stars: Morgan Freeman, Julie Comerford, Reinhard Genzel, Stefan Gillessen

Votes: 287