Season 9. Similar shows. How I Met Your Mother. Bernadette's interest in physics draws her to Leonard, sending a jealous Penny to Sheldon for a crash course on the subject. When Leonard's mother visits at Christmas, he finds out that his parents are getting divorced -- which Sheldon has known about for weeks. Leonard makes fun of Penny for consulting a psychic, then makes it up to her by visiting one himself. Raj bribes Sheldon to act as his wingman. When his apartment is burglarized, Sheldon begins to feel unsafe in Pasadena and researches new places to live.
Sheldon hopes that a menial job will clear his mind enough to solve a tough problem. Meanwhile, the rest of the gang enjoys roller disco night. When Leonard is invited to visit Switzerland's Large Hadron Collider, his decision to bring Penny along leaves Sheldon feeling betrayed.
Sheldon learns that he must be in court to fight a traffic ticket the same day that Stan Lee is due to appear at the comic book store. The guys find life imitating art when the "Lord of the Rings" ring they bought at a garage sale turns out to be the one actually used in the films. Nervous about a speech, Sheldon gets advice and help from Penny, Leonard and Raj Leonard is stunned when Penny responds "thank you" to his "I love you," and Sheldon sees a chance to get back at Wil Wheaton while bowling.
When Penny and Leonard break up, Sheldon continues his friendship with Penny, which Raj and Howard tell him just isn't done when a buddy gets dumped.
A physicist visiting from Princeton creates waves when she has a one-night stand with Leonard, then takes up with Raj and Howard. A feud between Leonard and Sheldon prompts Penny to ask why the two live together in the first place, and Leonard tells her in a series of flashbacks.
The guys' lunar experiment party turns ugly, thanks to Penny's date. Meanwhile, an online dating site matches Sheldon with Amy Farrah Fowler. Sheldon and Amy grow closer every day, until a minor disagreement causes them to split and Sheldon to seek solace by adopting 25 cats.
A chance meeting gives Howard a second chance with Bernadette, and Raj battles Sheldon over the addition of a desk in their office. Sheldon avoids Amy when she wants to introduce him to her mother, and Howard and Bernadette set Leonard up with an obnoxious blind date. Leonard's secret tryst with Raj's sister Priya prompts the guys to admit years' worth of secrets they've kept from one another.
Interviewed for Howard's security clearance, Sheldon blabs about the Mars Rover crash, Raj is nearly deported, and Leonard hits on the interviewer. Sheldon steals a print of "Raiders of the Lost Ark" from a theater, and Amy proves socially inept during a girls' night with Penny and Bernadette.
When her father visits, Penny asks Leonard to pretend that they're still together, since he's the only one of her boyfriends her dad has ever liked. When Amy is attracted to Penny's ex, she describes these new feelings to a jealous Sheldon, who argues that she must be hosting an alien parasite. The guys dress as the Justice League for a New Year's Eve party at Stuart's comic book shop, but Penny ditches to join her ex at a different event.
Leonard and Sheldon nearly come to blows over the development of a mathematics smartphone app, which has turned Sheldon into a megalomaniac. Sharing cars and hotel rooms causes multiple issues when the entire group heads to Big Sur for a science conference. Sheldon asks Penny for acting lessons to help him become more at ease at his new teaching job, and Raj fantasizes about Bernadette.
Leonard is honored when wealthy, elderly benefactor Mrs. Latham invites him for dinner, until he learns that he must sleep with her for a donation. Angered by his dependence on his mother, Bernadette insists that Howard move in with her; Leonard is thrilled that Priya has come to visit.
Priya pushes Leonard to end his friendship with Penny, and Sheldon becomes obsessed with figuring out Howard's card trick. The guys take a road trip to confront the hacker who pillaged Sheldon's World of Warcraft account, and the girls confront Priya about her attitude.
Penny's rumor that Bernadette and Howard are breaking up leads the friends to panic and Amy to conduct an experiment in gossip. Leonard's intensifying relationship with Priya violates multiple clauses in his roommate agreement with Sheldon, who's forced to rebuild the document. When Priya invites Howard and Bernadette on a double date with her and Leonard, Penny uses the opportunity to get back at her. Bernadette takes it personally when Howard's mother collapses upon hearing of their engagement, and Priya and Penny compare notes on Leonard.
As the women of the group form a bond of their own, Sheldon takes baby steps forward with Amy, and Howard prepares to boldly go on a new mission. Raj is on everyone's lips when he sleeps with Penny and admits to fantasizing about Bernadette; Sheldon leads the department paintball team. Sheldon's germ phobia goes into overdrive when Penny announces that the new chair he loves was salvaged from the side of the road.
Sheldon grows jealous when Amy takes Leonard as her date to a wedding. Meanwhile, Bernadette clashes with Howard about his mother. Penny sets up Raj with her friend Emily, and the two hit it off. But Emily's motives soon become apparent to everyone but him. Howard is thrilled to be going into space, but Bernadette fears for his safety. Meanwhile, Sheldon and Leonard are invited to a party by Wil Wheaton.
Sheldon's mother is in town for a few days as she waits for her cruise to set sail, but ends up spending her time with everyone but him. Leonard is tempted to cheat on Priya with Alice, a girl he met at the comic book store. Meanwhile, Sheldon seeks revenge for a Halloween prank.
Amy is devastated when Bernadette and Penny don't invite her to go shopping for bridesmaids dresses, but Sheldon doesn't know how to comfort her. A fight erupts when Penny and Leonard go to the movies as friends; Sheldon tries to rid the apartment of a bird that has him terrified. Stuart asks Amy out, prompting a jealous Sheldon to ask Penny for a date out of spite. She refuses, but gives him advice on how to make Amy happy. Leonard is contacted by a guy who bullied him in high school and hasn't changed.
The incident prompts Penny to admit she was once a bully herself. Sheldon buys Amy something pretty to make up for insulting her recent publication, and Bernadette reveals to Howard that she doesn't want children. Leonard and Penny reconcile, but agree that they should progress slowly and keep their relationship secret, which has its drawbacks. Penny and Leonard try starting their relationship again, Raj falls in love with Siri, and Sheldon and Amy launch the "Fun with Flags" webcast.
When Sheldon gets on Leonard's bad side, it doesn't take long to discover how much he relies on him in virtually every aspect of his life. Sheldon spends his mandatory vacation "helping" Amy at her lab, and Bernadette's father wants Howard to sign a prenuptial agreement.
Sheldon and Barry Kripke play basketball to see who gets a vacant office, and Amy gives Penny an enormous, unflattering portrait of the two of them. When his regular barber falls ill, Sheldon refuses to let anyone else cut his hair, and his lifestyle starts to change to reflect his longer locks.
The guys' plans for a weekend-long gaming marathon is derailed by Amy's aunt's 93rd birthday party, Bernadette's presence and other girlfriend issues. Sheldon has a crisis of conscience when he swaps his broken vintage Star Trek transporter for Leonard's identical -- and unbroken -- specimen. When he's asked to maintain Stephen Hawking's wheelchair during a guest lecture series, Howard realizes he has Sheldon in the palm of his hand.
Raj's drunken toast at Howard's bachelor party goes viral thanks to Wil Wheaton , sending Bernadette on the warpath. Howard's wedding plans are shaken up when NASA changes his launch schedule. Meanwhile, Leonard and Penny take their relationship to the next level. While waiting for the countdown for his voyage into space, Howard reflects on the previous days, including his impromptu wedding to Bernadette.
In between the group's usual hijinks, newly minted astronaut Howard adjusts to married life and Sheldon reassesses his relationship with Amy. Poor Raj is a third wheel on two different dates before he finally finds company.
Wolowitz is nagged by his mother even though he's in outer space. Penny is uncertain about her feelings for Leonard, which upsets Sheldon. Stuart is allowed to join the gang if he follows Sheldon's strict conditions. While Wolowitz wrestles with cabin fever, Sheldon provokes a chain reaction of jealousy by hiring an attractive assistant to sort his old papers.
Wolowitz is distressed by the lukewarm reception he receives when he returns home from space, while Sheldon gets ultra-competitive during game night. Raj and Stuart throw a Halloween bash, but it seems like the only one in a party mood is Penny, who gets turned on every time Leonard talks science. Sheldon gets competitive while playing a word game with Stephen Hawking, and Penny is infuriated by Leonard's attempt to help her with her homework. Wil Wheaton comes between Sheldon and Amy.
Bernadette has second thoughts about forcing Howard to finally move out of his mother's house. Raj and Howard go to extreme lengths to uncover Sheldon's secret afternoon activity, and Penny reveals how she really feels about Leonard.
Even though Sheldon doesn't drive, he's infuriated when Howard gets his parking spot at work, and their feud makes the whole gang miserable.
Howard finds surprising common ground with his father-in-law, while Amy relishes receiving some TLC from Sheldon when she's sick with the flu. Sheldon reveals the reason for his deep-seated dislike of Santa Claus and Christmas, while Raj bonds with Amy over drinks during a girls' night out.
Sheldon gets all the guys in trouble with Human Resources when he uses inappropriate language to talk to Alex about hitting on a clueless Leonard. The guys run into bad luck on a road trip to the Bakersfield Comic-Con. Back home, the girls discover that comic books aren't so bad.
Sheldon makes a shocking admission after a clash with Kripke jolts his self-confidence. Bernadette is furious when Howard spends too much money. After a fight with Sheldon, Leonard decides to move in with Penny, causing a chain reaction of unhappy roommates moving from apartment to apartment.
Valentine's Day, a holiday loathed by all, arrives and prompts the various couples in the gang to celebrate in ways both typical and surprising. Sheldon, Howard and Leonard have trouble inspiring tween girls to take an interest in science, while Raj and Lucy find the perfect way to communicate.
The gang does its best to cheer up an anxious Howard after Sheldon unearths an unopened letter that Howard's father sent him on his 18th birthday. The competition gets fierce when a tenured position opens up at the university, and it turns out that Ms. Davis from HR is on the deciding committee. Amy tries to help Sheldon overcome his compulsive need for closure, while Raj reacts badly to revelations in Lucy's blog about his feminine side.
Sheldon and Leonard are thrilled to meet their childhood hero, TV scientist Professor Proton, but their anticipated party does not go as planned. A weekend of "Dungeons and Dragons" goes awry when Raj leaves for a date with Lucy and Amy gets anxious about Sheldon's reluctance to become intimate. The gang has mixed reactions when Leonard gets a work opportunity that will require him to be away for the summer, and Raj makes a major breakthrough.
After Leonard returns, the gang faces off in Raj's scavenger hunt, celebrates Thanksgiving at Mrs. Sheldon Permalink: Some important new information has come to light. I thought it was paper Valentine's Day, a holiday loathed by all, arrives and prompts the various couples in the gang to celebrate in ways both typical and surprising.
Sheldon, Howard and Leonard have trouble inspiring tween girls to take an interest in science, while Raj and Lucy find the perfect way to communicate. The gang does its best to cheer up an anxious Howard after Sheldon unearths an unopened letter that Howard's father sent him on his 18th birthday. The competition gets fierce when a tenured position opens up at the university, and it turns out that Ms.
Davis from HR is on the deciding committee. Amy tries to help Sheldon overcome his compulsive need for closure, while Raj reacts badly to revelations in Lucy's blog about his feminine side.
Sheldon and Leonard are thrilled to meet their childhood hero, TV scientist Professor Proton, but their anticipated party does not go as planned. A weekend of "Dungeons and Dragons" goes awry when Raj leaves for a date with Lucy and Amy gets anxious about Sheldon's reluctance to become intimate.
The gang has mixed reactions when Leonard gets a work opportunity that will require him to be away for the summer, and Raj makes a major breakthrough. After Leonard returns, the gang faces off in Raj's scavenger hunt, celebrates Thanksgiving at Mrs. Wolowitz's and tries to score tickets to Comic Con. Sheldon tries to comfort Penny, who's worried Leonard is having too good a time on the North Sea, while Raj gets on the wrong side of the head of HR. When Sheldon learns that Leonard came home early to be with Penny, his feelings are hurt.
Howard can't understand why he's feeling fat and vulnerable. When the gang competes in a cutthroat scavenger hunt designed by Raj, it brings out the best -- and worst -- in everyone.
After Amy ruins one of Sheldon's favorite movies, he seeks revenge. Meanwhile, Leonard discovers a way to get Penny to do his bidding. Sheldon must decide how much "Amy time" is too much after she takes a job at his university, putting their relationship to the test. Sheldon's latest scientific breakthrough makes him feel like a fraud, and Howard's romantic gesture prompts Penny to step up her game with Leonard. After Prof. Meanwhile, Howard crashes a girls' night. Leonard fails to keep Sheldon from overreacting when a past mistake comes to light.
As penance, Leonard has to "walk a mile in Sheldon's shoes. Sheldon protests when the gang drags him to Mrs. Wolowitz's house for Thanksgiving. Meanwhile, Penny and Leonard deal with a mistake from her past. Leonard and Amy help Sheldon cope with the shame he's feeling after his accidental contribution to science is disproved. While Sheldon is away, everyone gathers to decorate the Christmas tree and imagines what their lives would be like had they never met him.
When Penny's big acting break on "NCIS" is a bust, Leonard struggles to help her, which prompts Penny to ask him a bold relationship question.
When Sheldon is forced to take a vacation, he tries to relax but instead spends a lot of time with Penny after she quits her job. When the guys can't get Comic-Con tickets, Sheldon decides to hold his own convention and ends up spending a wild night with James Earl Jones. Amy persuades Sheldon to join her -- along with Howard and Bernadette -- for a romantic weekend in Napa Valley to celebrate Valentine's Day.
When Leonard buys a table, it causes Sheldon to reevaluate the changes in his life. Meanwhile, Wolowitz is offered a chance to go back into space. Bernadette tries to make peace between Howard and Sheldon by having them travel together to Houston in an attempt to mend their friendship. When Sheldon visits his mom, he's forced to confront a new reality.
Meanwhile, Raj's murder-mystery party starts some fights within the gang. While Raj is wracked with guilt over dating two women at the same time, Penny wrestles with whether to take a role in a cheesy movie. Sheldon faces a personal crisis after deciding he's wasting his time with string theory. Meanwhile, a double date ends in embarrassment. Leonard tries to help Sheldon free his mind by reinstating "Anything Can Happen Thursday," and Raj seeks Howard's help to prepare for a date.
Proton helps Sheldon cope with grief, while Leonard turns a relationship milestone into a competition with Penny. A horrible day at work prompts Penny to reevaluate her life choices. Meanwhile, Howard and Bernadette struggle to care for bedridden Mrs. With his entire world changing around him, Sheldon is forced to confront an uncertain future.
Meanwhile, Raj and Emily take things to the next level. As the gang deals with personal and professional ups and downs, Penny tries out a new career path in between relationship hiccups with Leonard.
Sheldon is ready to come home after an incident on the train, so Amy and Leonard pick him up in Arizona. G Leonard is caught between a rock and a hard place when he's responsible for distributing extra grant money. Bernadette turns the backyard playhouse into a hideaway from her husband and kids.
PG Sheldon tries to bond with Amy's father. But when Howard lures Mr. Fowler away with magic tricks, Sheldon has no choice but to bond with Mrs. Meanwhile, Raj and Anu attempt to get physical. The Application Deterioration Episode The Celebration Experimentation Episode The Positive Negative Reaction Episode The Valentino Submergence Episode The Meemaw Materialization Episode The Empathy Optimization Episode The Sales Call Sublimation Episode The Opening Night Excitation Episode The Earworm Reverberation Episode The Platonic Permutation Episode 9.
The Daily Show with Trevor Noah. Trailers and Extras. Microsoft may earn an Affiliate Commission if you purchase something through recommended links on this page.ComedySitcom. No Free Trial. Highest quality. Watch with Watch on Big bang theory series 9 watch online free Watch Now. High quality. Sling TV. Microsoft Store. Medium quality. Itunes Store. Watch with Watch on Tvcom Watch Now. Show More Show Less. Seasons and episodes availability varies between streaming services and are catered to US users. Most recommended streaming services. Synopsis Leonard and Sheldon are brilliant physicists — geniuses in the laboratory but socially challenged everywhere big bang theory series 9 watch online free. Enter beautiful, street-smart neighbor Penny, who aims to teach them a thing or two about life. Season 9. Similar shows. How I Met Your Mother. The Daily Show with Trevor Noah. Trailers and Extras. Microsoft may earn an Affiliate Commission if best free survival horror games pc purchase something through recommended links on this page. Send MSN Feedback. How can we improve? Watch The Big Bang Theory season 9 episode 1 online. The complete guide by MSN. Click here and with Watch on FandangoNOW Watch Now. No Free Trial. Currently you are able to watch "The Big Bang Theory - Season 9" streaming on fuboTV, Sling TV, DIRECTV, HBO Max or buy it as download on Apple iTunes. Watch The Big Bang Theory Season 9 full episodes online, free and paid options via our partners and affiliates. The Big Bang Theory. It's time to PG Everything changes for two geeks when a free-spirited girl moves in next door. Watch Now Season 12, Episode 9. Watch all you want for free. Watch the Series Watch The Big Bran Hypothesis. 9. The Cooper-Hofstadter Polarization. 19m. Leonard and Sheldon are. The Big Bang Theory Watch the Series Watch The Higgs Boson Observation. 9. The Parking Spot Escalation. 20m. Even though Sheldon doesn't drive. with a mystery man, Sheldon enlists the help of Howard and Raj to find a new girlfriend by posting online. Penny and the gang try to treat themselves to a Sheldon free weekend. Chaos ensues in the season nine finale when Leonard's recently divorced Bonus: The Big Bang Theory: Comic-Con Panel (EST). Prepare to enter phase nine of television's perpetual laughter experiment as THE BIG BANG THEORY successfully fuses the elements of science and sitcom. The Big Bang Theory season 9 episode guide on sud-ouest-tai-chi-chuan.org Watch all 24 The Big Bang Theory episodes from season 9,view pictures, get episode information and. Added: September 21, Put us on the internet. Home Video News Cast. Select reason You pop, sparkle and buzz electric. Login to your account Remember Me Register a new account Lost your password? The Consummation Deviation Nov 08, On The Big Bang Theory Season 12 Episode 20, Koothrappali is worried he won't be taken seriously after publishing a paper saying he may have found alien life. Please disable AdBlocker in your browser for our website. Add comment. We update our episodes section on a weekly basis and we make sure you never fall behind.