The Big Bang Theory Season 5 (24 Episodes)
On the fifth season premiere, Penny worries that she’s screwed things up permanently with her friends after her night with Raj, while Sheldon takes command of the paintball team.
A battle of wills between Sheldon and Penny leaves Amy caught in the middle, while Leonard tries to spice up his long-distance relationship with Priya (AARTI MANN).
Attending a co-worker’s wedding, Leonard and Amy (MAYIM BIALIK) get to know each other better, while Howard and Bernadette spend the weekend with Mrs. Wolowitz!
When Raj is upset he’s the only one of the four guys who is not in a relationship, Penny sets out to find the perfect date, introducing him to Emily (guest star KATIE LeCLERC Switched at Birth) a girl he can actually talk to!
Sheldon and Leonard get invited to a housewarming party at WIL WHEATON’s house; while Howard gets an out-of-this-world opportunity!
Craving a little motherly love, Sheldon competes with the gang for his mother’s attention when she comes to visit. LAURIE METCALF reprises her role as Sheldon’s mother, Mary.
A cute comic book artist (guest star COURTNEY FORD) puts Leonard’s relationship with Priya to the test; while Sheldon, getting into the spirit of Halloween, tries to scare the guys.
Amy is heartbroken when Bernadette and Penny go shopping for wedding dresses without her.
Can friends with benefits still be friends without? Leonard and Penny try hanging out alone, while Sheldon must overcome his fear of birds.
Sheldon becomes jealous and considers taking his relationship with Amy to the next level when Stuart (guest star KEVIN SUSSMAN) from the comic book store asks her out on a date.
Leonard must face his fears after being contacted by his high school tormentor (guest star LANCE BARBER), while Penny realizes that she might have been a bully herself.
Sheldon gets in trouble with Amy, and it’s up to Penny to teach him how to be a better boyfriend. Howard, meanwhile, must come to grips with Bernadette’s dislike of children.
Everything might change when Leonard offers Penny a spur of the moment invitation to a romantic dinner for two on the 100th episode of the series.
Leonard and Penny experiment with dating again by “beta testing” their relationship, while Raj develops a peculiar relationship with his phone’s virtual assistant.
Sheldon’s selfish demands force Leonard to reconsider their friendship. Meanwhile, Howard tries to pick his astronaut nickname. NASA astronaut MIKE MASSIMINO guest stars.
When Sheldon is forced to take a vacation by the university, he goes to work with Amy in her neurobiology lab. Meanwhile, Bernadette wants Howard to sign a pre-nuptial agreement.
When a corner office at the University opens up, Sheldon must compete for it with his office nemesis, Barry Kripke. Meanwhile, a personal gift from Amy makes Penny uncomfortable.
A change in Sheldon’s routine forces him to re-evaluate his entire life, when his barber is sick. Meanwhile, Howard rethinks his decision to go into space after astronaut training.
It’s on like Alderaan, when the guys plan a weekend Star Wars gaming marathon! But when Sheldon chooses the guys-only weekend over a weekend with Amy to visit her aunt, he is destined to feel the force!
It’s a dream come true for Sheldon when he has a close encounter with his hero, Mr. Spock – legendary sci-fi icon LEONARD NIMOY.
When Wolowitz gets tow work with world-renowned scientist STEPHEN HAWKING (guest starring as Himself), Sheldon is willing to do anything to meet his hero.
Howard’s wedding plans are in jeopardy after the guys (and Wil Wheaton) throw him a bachelor party. After details of his sexual history are leaked online, Bernadette reconsiders marrying Howard.
When NASA reschedules Howard’s mission and puts his wedding plans in jeopardy, he’s forced to face his fears and Bernadette’s dad (guest star CASEY SANDER).
When Howard and Bernadette decide they want to be married before his NASA space launch, the gang rushes to put on a wedding, on the fifth season finale.