Series 8 Episode 18
Sheldon and Leonard fall out over a magazine article about their physics paper. A power cut at Mrs Wolowitz's house defrosts the meals she made before her death so the gang consume them in her honour.
Series 8 Episode 1
The Locomotion Interruption: Leonard and Amy take an unexpected road trip to Arizona
Series 8 Episode 1
Series 8 Episode 2
The Junior Professor Solution: Howard surprises everyone by enrolling on a university course that Sheldon has to teach
Series 8 Episode 2
Series 8 Episode 3
The First Pitch Insufficiency: Howard is nervous when Nasa ask him to throw the first pitch at a baseball game
Series 8 Episode 3
Series 8 Episode 4
The Hook-Up Reverberation: The guys consider becoming part-owners of Stuart's comic book shop
Series 8 Episode 4
Series 8 Episode 5
The Focus Attenuation: The guys meet to invent something of scientific importance but end up procrastinating
Series 8 Episode 5
Series 8 Episode 6
The Expedition Approximation: Sheldon and Raj try to find out if they could survive a research expedition in a salt mine
Series 8 Episode 6
Series 8 Episode 7
The Misinterpretation Agitation: The guys help Penny out of an awkward situation when a smitten doctor turns up at her door
Series 8 Episode 7
Series 8 Episode 8
The Prom Equivalency: The girls decide they want to re-enact their high-school proms with their current partners
Series 8 Episode 8
Series 8 Episode 9
The Septum Deviation: When Leonard has surgery on his nose, it's Sheldon who seems to be in need of sympathy
Series 8 Episode 9
Series 8 Episode 10
The Champagne Reflection: An emotional Sheldon and Amy record the last episode of their internet show Fun with Flags
Series 8 Episode 10
Series 8 Episode 11
The Clean Room Infiltration: Amy hosts a Victorian Christmas Eve dinner, complete with party games
Series 8 Episode 11
Series 8 Episode 12
The Space Probe Disintegration: Raj anxiously awaits the arrival of some data from a space probe that he helped to launch
Series 8 Episode 12
Series 8 Episode 13
The Anxiety Optimization: Sheldon asks his friends to make him anxious to cure the mental block hindering his work
Series 8 Episode 13
Series 8 Episode 14
The Troll Manifestation: Leonard and Sheldon co-publish a physics paper but have to face negative online comments
Series 8 Episode 14
Series 8 Episode 15
The Comic Book Store Regeneration: As the gang prepare for Stuart's comic book shop reopening, Howard gets some shocking news
Series 8 Episode 15
Series 8 Episode 16
The Intimacy Acceleration: The gang hear about an experiment that is designed to make participants fall in love
Series 8 Episode 16
Series 8 Episode 17
The Colonization Application: Amy learns that Sheldon has applied to take part in a one-way mission to colonise Mars
Series 8 Episode 17
Series 8 Episode 18
The Leftover Thermalization: Sheldon and Leonard fall out over a magazine article about the physics paper they co-wrote
Series 8 Episode 18
Series 8 Episode 19
The Skywalker Incursion: Howard and Bernadette argue while clearing out the items stored in Mrs Wolowitz's garage
Series 8 Episode 19
Series 8 Episode 20
The Fortification Implementation: When Sheldon and Amy build a blanket fort, they come to a crossroads in their relationship
Series 8 Episode 20