E4 +1 Tuesday

Sheldon's epic railway journey ends in chaos, forcing Leonard and Amy to travel to Arizona to pick him up. Meanwhile, Penny has a job interview

Sheldon teaches a course at the university, and Howard surprises the gang when he chooses to enrol on it. Comedy, guest starring Regina King

Leonard and Penny attempt to prove Sheldon wrong when he claims that he and Amy have a superior relationship, and Howard is asked to throw the first pitch at a baseball game

Christmas festivities are in full swing in the village, as Warren and Mercedes look forward to the future and Frankie confides in Dodger

Jack is suited and booted with a special mission to make Christmas day extra special. Nancy and Darren having put the year's pains behind them are hopeful

Amusing internet videos, featuring a variety of boats, animals surfing, and a dating agency for sea captains, while there is dancing from across the world

Penny struggles with Leonard's confession that he kissed another woman and has to decide whether to marry him. Amy tells Sheldon she wants to take a break

Leonard meets up with the woman he kissed in the hope of setting Penny's mind at ease, while Sheldon films a special episode of Fun with Flags after his break-up with Amy

The guys' science skills are tested by a flat tyre during Leonard's bachelor party weekend in Mexico. Penny is compelled to tell her family that she and Leonard eloped

Penny and Leonard announce that they are moving in together, prompting Sheldon to remember a time before he had met either of them. Howard and Raj form a band

The boys want to become more sporty, so Barry Kripke teaches them the art of fencing, while Penny, Amy and Bernadette help Stuart attract more female customers

Leonard and Sheldon go to great lengths to secure helium during a nationwide shortage, while Bernadette and Penny try to find Amy a new boyfriend

Sheldon is interviewed for a Star Trek documentary by star of the show Wil Wheaton, and reveals his plan to propose to Amy. Bernadette suggests starting a family with Howard

Howard and Raj post an online advert to find a new girlfriend for Sheldon. Penny and Bernadette spy on Amy to find out more about her new boyfriend

Sheldon and Amy spend Thanksgiving together as friends, while Howard reluctantly agrees to volunteer at a soup kitchen with Bernadette, Raj and Emily

Sheldon is driven to distraction when a tune becomes stuck in his head, while Amy and Dave arrange another date. Comedy, starring Jim Parsons and Mayim Bialik

After more than five years of dating, Sheldon and Amy spend their first night together, while Leonard, Howard and Raj must decide who will take their extra Star Wars movie ticket

Penny gets more than she bargained for when Leonard meets a psychiatrist on her behalf, while Sheldon and Raj collaborate on an astronomical discovery

After being forced to deal with a sick Sheldon, the rest of the gang try to treat themselves to a Sheldon-free weekend. Comedy, starring Johnny Galecki and Jim Parsons

Sheldon's grandmother finally comes to Pasadena to visit her favourite grandson, and ends up clashing with Amy. Comedy, guest starring June Squibb

Sheldon and Amy host a Valentine's Day episode of Fun with Flags, while Leonard and Penny grapple with getting older, and Raj is torn between two girls

When Bernadette shares some news, the groups' reactions are not what she expected, with Wolowitz freaking out about her announcement

In the 200th episode of the comedy, the gang finally celebrates Sheldon's birthday after more than nine years together, with the help of a few special guests

Leonard, Sheldon and Howard face problems when they file for a patent for their infinite persistence gyroscope. Plus, Penny, Amy and Bernadette give Raj dating advice

Amy is shocked at a revelation from Sheldon after she buys him a new laptop, while Raj sells out Leonard and Howard after they lie to their wives

On a weekend cabin trip with Penny and Amy, Sheldon spills one of Leonard's secrets, while Howard and Bernadette must draw a line when Raj goes overboard with pregnancy gifts

A planned Game of Thrones viewing party is ruined when a petty argument between Leonard and Sheldon escalates into a full-blown dispute that splits the gang in half

The gang goes to a bar and runs into Penny's old boyfriend Zack, while Bernadette is left to spend the evening with Sheldon when she cannot go wine tasting with the others

Sheldon pays Stuart to be Amy's substitute boyfriend for the afternoon while he and the boys attend a film screening, and Penny tries to bond with Leonard's mother Beverly

Chaos ensues when Leonard's recently divorced parents and Sheldon's religious mother come to town. Howard and Raj think the government is out to get them

There is Christmas magic at the McQueens', but for Mercedes, the sparkle has faded. Warren turns up in full Santa costume to help spread festive cheer

A snowstorm leaves the children trapped inside Springfield Elementary, forcing Homer and Ned Flanders to mount a rescue operation

The restaurant's Christmas guests include a jeweller and a portrait artist, a vicar and a parish worker, a DJ and the self-proclaimed Queen of Christmas, and a pair of students

The armchair critics share their opinions on shows including I'm a Celebrity Get Me Out of Here!, Squid Game: The Challenge, All Her Fault and Celebrity Race Across the World

Seventy-five-year-old naturist Ian from North Yorkshire - the show's oldest ever picker - and 30-year-old waitress Kerry from Aberdeen come in search of their perfect partners

Actor TJ meets support worker and fellow Bristolian Chanelle, but their date gets off to a rocky start when she discovers he has been out drinking during the day

The armchair critics share their opinions on shows including I'm a Celebrity Get Me Out of Here!, Squid Game: The Challenge, All Her Fault and Celebrity Race Across the World

Seventy-five-year-old naturist Ian from North Yorkshire - the show's oldest ever picker - and 30-year-old waitress Kerry from Aberdeen come in search of their perfect partners

Actor TJ meets support worker and fellow Bristolian Chanelle, but their date gets off to a rocky start when she discovers he has been out drinking during the day

Cameron's emotional sister Pam proves too much for Mitchell, while Phil and Claire struggle to stay awake during a spontaneous trip to Paris

Claire and the kids cause havoc as they desperately try to hide a stray dog from Phil, while Jay finds himself in a pickle when Gloria tries to make friends with another couple

Penny struggles with Leonard's confession that he kissed another woman and has to decide whether to marry him. Amy tells Sheldon she wants to take a break

Leonard meets up with the woman he kissed in the hope of setting Penny's mind at ease, while Sheldon films a special episode of Fun with Flags after his break-up with Amy

The guys' science skills are tested by a flat tyre during Leonard's bachelor party weekend in Mexico. Penny is compelled to tell her family that she and Leonard eloped