Blitzgiving: A broken oven forces the gang to spend Thanksgiving at Zoey's house, but it isn't long before she and Ted are at loggerheads once again. (S6 Ep10) [AD,S]
The Mermaid Theory: When Ted's friendship with Zoey begins to make her husband feel jealous, Lily suggests that Ted should attempt to befriend him. (S6 Ep11) [AD,S]
False Positive: There's chaos at Christmas when Marshall and Lily have a positive result on a pregnancy test, Robin chooses between two jobs, and Barney wants a diamond suit. (S6 Ep12) [AD,S]
Last Words: It's the day of Marshall's father's funeral. Marshall is upset when he remembers that the last piece of advice his dad gave him was to watch Crocodile Dundee III. (S6 Ep14) [AD,S]
Oh, Honey: Zoey sets Ted up on a date with her naive cousin. Ted realises that he loves Zoey but tries to push her away so that he doesn't cause trouble in her relationship. (S6 Ep15) [AD,S]
Desperation Day: Barney declares February 13th to be Desperation Day: a holiday for women with low self-esteem because they are destined to be alone on Valentine's Day. (S6 Ep16) [AD,S]
Garbage Island: After Marshall sees a documentary about an island in the Pacific that is used as a landfill site, he becomes determined to save the environment. (S6 Ep17) [AD,S]
A Change of Heart: The friends have health checks in the wake of Marshall's dad's fatal heart attack. Robin dates a man called Scooby who reminds the gang of a dog. (S6 Ep18) [AD,S]
Canning Randy: Marshall is guilt-ridden after firing his incompetent assistant. Zoey enrols in Ted's class. Robin's friends spot her going home in her Halloween costume at dawn. (S6 Ep7) [AD,S]
Natural History: When the gang attends a black-tie fundraiser at the Natural History Museum, Ted runs into Zoey, and sees a whole different side to her. (S6 Ep8) [AD,S]
Blitzgiving: A broken oven forces the gang to spend Thanksgiving at Zoey's house, but it isn't long before she and Ted are at loggerheads once again. (S6 Ep10) [AD,S]
The Mermaid Theory: When Ted's friendship with Zoey begins to make her husband feel jealous, Lily suggests that Ted should attempt to befriend him. (S6 Ep11) [AD,S]
False Positive: There's chaos at Christmas when Marshall and Lily have a positive result on a pregnancy test, Robin chooses between two jobs, and Barney wants a diamond suit. (S6 Ep12) [AD,S]
Last Words: It's the day of Marshall's father's funeral. Marshall is upset when he remembers that the last piece of advice his dad gave him was to watch Crocodile Dundee III. (S6 Ep14) [AD,S]
Oh, Honey: Zoey sets Ted up on a date with her naive cousin. Ted realises that he loves Zoey but tries to push her away so that he doesn't cause trouble in her relationship. (S6 Ep15) [AD,S]
Desperation Day: Barney declares February 13th to be Desperation Day: a holiday for women with low self-esteem because they are destined to be alone on Valentine's Day. (S6 Ep16) [AD,S]
Garbage Island: After Marshall sees a documentary about an island in the Pacific that is used as a landfill site, he becomes determined to save the environment. (S6 Ep17) [AD,S]
A Change of Heart: The friends have health checks in the wake of Marshall's dad's fatal heart attack. Robin dates a man called Scooby who reminds the gang of a dog. (S6 Ep18) [AD,S]
The Exploding Meatball Sub: Marshall's decision to quit his job at the bank and take a volunteer position at an environmental organisation affects the whole gang. (S6 Ep20) [AD,S]
Hopeless: Barney is determined to show his dad that it was a mistake to have given up his former life of wild partying, drinking and sleeping around. (S6 Ep21) [AD,S]
The Perfect Cocktail: Marshall and Barney fall out over the destruction of the Arcadian Hotel so Robin and Lily create a super cocktail that will force them to make up. (S6 Ep22) [AD,S]
Landmarks: Robin makes her opinion known when Ted is called as a witness as the Landmark Preservation Council meets to decide on the fate of the Arcadian Hotel. (S6 Ep23) [AD,S]
How I Met Everyone Else: Ted's new girlfriend becomes jealous that the story about how Ted and his friends met is better than the one about how she met him.
Little Boys: Lily sets Robin up with the father of a pupil. Though hesitant at first, Robin agrees and soon bonds with his son, making it difficult when she dumps his dad.
Bachelor Party: Marshall is fuming when Barney ruins the sedate stag do that Ted had organised by getting a stripper, and he considers asking him to stay away from the wedding.
Showdown: Lily and Marshall decide to live apart for the fortnight before their wedding, while Barney is ecstatic to appear as a contestant on The Price Is Right.
Moving Day: Barney steals Ted's removals van with his belongings in it when he discovers that he's moving in with Robin. He makes Ted complete challenges to get it back.
Arrivederci, Fiero: Marshall, Ted, Lily and Robin are sad when they learn that Marshall's trusty car is broken and reminisce about their adventures in it.
Monday Night Football: When the gang are invited to a funeral on the same night as the Super Bowl they come up with a creative solution to the problem.
Something Blue: At Marshall and Lily's wedding, Barney overhears Ted and Robin discussing a secret. He wheedles it out of them and learns that they have split up.
Something Borrowed: When Marshall and Lily's plans for their dream wedding go awry, their friends save the day and give them the low-key ceremony they've dreamed of.
Showdown: Lily and Marshall decide to live apart for the fortnight before their wedding, while Barney is ecstatic to appear as a contestant on The Price Is Right.
Moving Day: Barney steals Ted's removals van with his belongings in it when he discovers that he's moving in with Robin. He makes Ted complete challenges to get it back.
Arrivederci, Fiero: Marshall, Ted, Lily and Robin are sad when they learn that Marshall's trusty car is broken and reminisce about their adventures in it.
Stuff: Lily's irked when Barney gives harsh criticism of her performance in a play. Ted and Robin fall out when they discuss what to do with 'stuff' left behind by ex-partners.
Monday Night Football: When the gang are invited to a funeral on the same night as the Super Bowl they come up with a creative solution to the problem.
Columns: Ted struggles to fire his belittling former boss Hammond, who is now working for him. After three failed attempts to sack him, Hammond has a heart attack.
Single Stamina: Barney is struggling with the fact that his friends are all in relationships. Then his brother arrives for a visit and reveals that he is settling down too.
Slap Bet: Robin's refusal to go to the shopping mall piques Ted's interest as to why she dislikes them so much. Marshall and Barney propose a 'slap bet' to discover the reason.
Atlantic City: Lily and Marshall are ecstatic to be reunited and plan to elope to Atlantic City to get married. Will their wedding plans go without a hitch?
Swarley: Barney is accidentally called Swarley by Chloe, the coffee house waitress, leading an amused Ted and Marshall to call him by this name all day.
World's Greatest Couple: Lily moves into Barney's flat to escape her rat-infested home. The two fall asleep in each other's arms but feel awkward when they wake up.
Brunch: Ted and the gang have brunch with his parents. Robin worries that Ted's mum doesn't like her but realises that isn't the case when a huge secret is revealed.
Columns: Ted struggles to fire his belittling former boss Hammond, who is now working for him. After three failed attempts to sack him, Hammond has a heart attack.
First Time in New York: Robin's teenage sister Katie comes to stay. Robin discourages Katie from losing her virginity, which prompts the gang to recall their first experiences.
Single Stamina: Barney is struggling with the fact that his friends are all in relationships. Then his brother arrives for a visit and reveals that he is settling down too.
Slap Bet: Robin's refusal to go to the shopping mall piques Ted's interest as to why she dislikes them so much. Marshall and Barney propose a 'slap bet' to discover the reason.
Atlantic City: Lily and Marshall are ecstatic to be reunited and plan to elope to Atlantic City to get married. Will their wedding plans go without a hitch?
Swarley: Barney is accidentally called Swarley by Chloe, the coffee house waitress, leading an amused Ted and Marshall to call him by this name all day.
Aldrin Justice: Barney seduces Marshall's professor in the hope that she'll give the class higher marks, but she ends up grading Barney's performance in the bedroom.
World's Greatest Couple: Lily moves into Barney's flat to escape her rat-infested home. The two fall asleep in each other's arms but feel awkward when they wake up.
Ted Mosby: Architect: Ted and Robin have their first big argument after Robin becomes annoyed at hearing Ted's work grumbles, so Ted's pals try to prove that he's not dull.
Brunch: Ted and the gang have brunch with his parents. Robin worries that Ted's mum doesn't like her but realises that isn't the case when a huge secret is revealed.
The Scorpion and the Toad: Marshall has a string of ill-fated nights out with Barney in a bid to meet new women. He eventually goes on a date, but bumps into Lily.
Where Were We?: Ted's romantic luck is bolstered by his new relationship with Robin, who has yet to reveal her love of guns. Marshall is feeling down after his split from Lily.
Come On: Barney slaps Ted when he says he wants to pursue Robin. Later, in frustration at Robin's camping trip with Sandy, Ted performs a rain dance to keep her at home.
Mary the Paralegal: It's the night of Robin's award ceremony. Ted feels blue when he discovers who Robin is taking, so he agrees to let Barney set him up with an escort.
Milk: It's Ted's 28th birthday and he gets a call from the matchmaking service saying they've found his dream woman. Unconvinced, Ted realises that Robin is the one for him.
Life Among the Gorillas: Marshall has a tough first day at Barney's office and feels like a square peg surrounded by colleagues with obnoxious outlooks on life.
Best Prom Ever: Marshall and Lily's dream wedding venue becomes free and they set a date for their nuptials. Lily, however, worries that she's not ready to get married.
Cupcake: Ted and Victoria face their first relationship challenge when Victoria is offered a job in Germany. Marshall and Lily find themselves in some bother.
Game Night: Marshall invents a new game - Marshgammon - after winning previous game nights. Unfortunately no one but Marshall understands how to play it.
The Scorpion and the Toad: Marshall has a string of ill-fated nights out with Barney in a bid to meet new women. He eventually goes on a date, but bumps into Lily.
Where Were We?: Ted's romantic luck is bolstered by his new relationship with Robin, who has yet to reveal her love of guns. Marshall is feeling down after his split from Lily.
Come On: Barney slaps Ted when he says he wants to pursue Robin. Later, in frustration at Robin's camping trip with Sandy, Ted performs a rain dance to keep her at home.
Milk: It's Ted's 28th birthday and he gets a call from the matchmaking service saying they've found his dream woman. Unconvinced, Ted realises that Robin is the one for him.
Mary the Paralegal: It's the night of Robin's award ceremony. Ted feels blue when he discovers who Robin is taking, so he agrees to let Barney set him up with an escort.
Life Among the Gorillas: Marshall has a tough first day at Barney's office and feels like a square peg surrounded by colleagues with obnoxious outlooks on life.
Cupcake: Ted and Victoria face their first relationship challenge when Victoria is offered a job in Germany. Marshall and Lily find themselves in some bother. [AD]
Game Night: Marshall invents a new game - Marshgammon - after winning previous game nights. Unfortunately no one but Marshall understands how to play it. [AD,S]