Cleaning House: Barney convinces the gang to help his mum move house. They soon learn that she is very protective of Barney and told him white lies throughout his childhood. (S6 Ep2) [AD,S]
Unfinished: When Ted declines Barney's offer to design the new GNB building, Barney woos him by using his best womanising tactics. Robin rings Don in an attempt to win him back. (S6 Ep3) [AD,S]
Subway Wars: The gang race against each other, using different methods of transport, to get to a restaurant where Woody Allen has been spotted. Who will arrive first? (S6 Ep4) [AD,S]
Baby Talk: Lily and Marshall have an argument about baby names, which prompts Ted to explore his own fears about fatherhood. Robin takes a dislike to her colleague. (S6 Ep6) [AD,S]
Home Wreckers: Ted is upset when his mum marries her long-term partner and walks out of the wedding, refusing to give a speech. Later, he buys a house on a whim. (S5 Ep20) [AD,S]
Twin Beds: After Don asks Robin to move in with him, she decides it's time for Ted and Barney to meet him. They both react badly when they realise Robin has moved on. (S5 Ep21) [AD,S]
Robots Versus Wrestlers: Lily and Marshall discuss having children, Ted mixes with a new social crowd and Barney worries that the gang is drifting apart. (S5 Ep22) [AD,S]
The Wedding Bride: Ted takes a date to see a new hit film, but the plot eerily reflects his relationship with Stella. Then he discovers Stella's fiancÂe wrote the screenplay. (S5 Ep23) [AD,S]
Doppelgangers: Marshall and Lily make a secret pact to start trying to have a baby if they see Barney's double, while Robin is delighted to be offered her dream job. (S5 Ep24) [AD,S]
Big Days: Ted and Barney argue about who has first 'dibs' on asking out a beautiful woman, and Marshall can't keep quiet about his desire to start a family. (S6 Ep1) [AD,S]
Cleaning House: Barney convinces the gang to help his mum move house. They soon learn that she is very protective of Barney and told him white lies throughout his childhood. (S6 Ep2) [AD,S]
Unfinished: When Ted declines Barney's offer to design the new GNB building, Barney woos him by using his best womanising tactics. Robin rings Don in an attempt to win him back. (S6 Ep3) [AD,S]
Subway Wars: The gang race against each other, using different methods of transport, to get to a restaurant where Woody Allen has been spotted. Who will arrive first? (S6 Ep4) [AD,S]
Baby Talk: Lily and Marshall have an argument about baby names, which prompts Ted to explore his own fears about fatherhood. Robin takes a dislike to her colleague. (S6 Ep6) [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]
Big Days: Ted and Barney argue about who has first 'dibs' on asking out a beautiful woman, and Marshall can't keep quiet about his desire to start a family. (S6 Ep1) [AD,S]
Doppelgangers: Marshall and Lily make a secret pact to start trying to have a baby if they see Barney's double, while Robin is delighted to be offered her dream job. (S5 Ep24) [AD,S]
The Wedding Bride: Ted takes a date to see a new hit film, but the plot eerily reflects his relationship with Stella. Then he discovers Stella's fiancÂe wrote the screenplay. (S5 Ep23) [AD,S]
Robots Versus Wrestlers: Lily and Marshall discuss having children, Ted mixes with a new social crowd and Barney worries that the gang is drifting apart. (S5 Ep22) [AD,S]
Twin Beds: After Don asks Robin to move in with him, she decides it's time for Ted and Barney to meet him. They both react badly when they realise Robin has moved on. (S5 Ep21) [AD,S]
Home Wreckers: Ted is upset when his mum marries her long-term partner and walks out of the wedding, refusing to give a speech. Later, he buys a house on a whim. (S5 Ep20) [AD,S]
The Perfect Week: Barney reaches a milestone, Lily and Marshall realise they've been using the same toothbrush, Robin waits to hear from a date, and Ted insults a student. (S5 Ep14) [AD,S]
Jenkins: Marshall tells Ted a series of anecdotes about his colleague, who is called Jenkins. Later on, Ted is surprised to discover that Jenkins is a woman. (S5 Ep13) [AD,S]
The Window: Ted's friends try to help him woo the perfect woman from his college days, but Barney and Robin spoil his big chance. Will he still get his girl? (S5 Ep10) [AD,S]
Bagpipes: Barney mistakenly thinks that Marshall and Lily are heading for divorce and offers his help. Ted unearths some home truths for Robin and Barney. (S5 Ep6) [AD,S]
Zoo or False: Marshall gets mugged at gun point. Lily applies for a gun licence to make them both feel safer, but Marshall objects and makes up a tall story to calm her down. (S5 Ep19) [AD,S]
Say Cheese: Lily is annoyed with Ted for inviting his new date Amanda to her birthday dinner, complaining about the run of short-lived girlfriends he brings along each year. (S5 Ep18) [AD,S]
Hooked: Ted is humiliated when he sees a woman he's dating on another date on the night they were supposed to meet. Marshall is charmed by a man who is smitten with Lily. (S5 Ep16) [AD,S]
Rabbit or Duck: Barney holds his phone number up during the Super Bowl broadcast and is inundated with phone calls from women. Lily and Marshall set Ted up on a blind date. (S5 Ep15) [AD,S]
The Perfect Week: Barney reaches a milestone, Lily and Marshall realise they've been using the same toothbrush, Robin waits to hear from a date, and Ted insults a student. (S5 Ep14) [AD,S]
Jenkins: Marshall tells Ted a series of anecdotes about his colleague, who is called Jenkins. Later on, Ted is surprised to discover that Jenkins is a woman. (S5 Ep13) [AD,S]
Girls vs Suits: Ted meets attractive PhD student Cindy, who is tired of men falling in love with her roommate. Will Ted fall for her instead? (S5 Ep12) [AD,S]
The Window: Ted's friends try to help him woo the perfect woman from his college days, but Barney and Robin spoil his big chance. Will he still get his girl? (S5 Ep10) [AD,S]
The Playbook: Barney reverts back to his bachelor ways when he and Robin break up and he is soon on the prowl looking for new women, but Lily objects to his behaviour. (S5 Ep8) [AD,S]
Bagpipes: Barney mistakenly thinks that Marshall and Lily are heading for divorce and offers his help. Ted unearths some home truths for Robin and Barney. (S5 Ep6) [AD,S]
Duel Citizenship: Marshall and Ted take a road trip to Chicago. Unfortunately for Ted, Marshall invites Lily along. Robin faces deportation when she breaks an American's nose. (S5 Ep5) [AD,S]
Robin 101: Robin and Barney decide to make their relationship official but Barney finds it difficult to adjust from being a bachelor to being part of a couple. (S5 Ep3) [AD,S]
Definitions: Robin and Barney are puzzled about how they should define their new, non-platonic relationship. Ted's first day as a lecturer doesn't go to plan. (S5 Ep1) [AD,S]
As Fast as She Can: Tony makes a decision about his relationship with Stella after bumping into Ted. Barney tries to get a speeding ticket so he can talk his way out of paying. (S4 Ep23) [AD,S]
The Three Days Rule: Ted's friends pressure him into waiting three days before calling Holly, a girl he likes, and asking her out, but he secretly starts sending her texts. (S4 Ep21) [AD,S]
Mosbius Designs: Ted loses his job and decides to set up his own architecture company in the flat he shares with Robin. Barney tells Marshall how he feels about Robin. (S4 Ep20) [AD,S]
Murtaugh: Barney is banned from playing Laser Quest when Ted tells him that he's too old to take part in the game, so Barney retaliates by behaving childishly. (S4 Ep19) [AD,S]
Old King Clancy: Marshall and Barney learn that Ted's company is about to lose some work and hide this from him. Later, the gang are enthralled by Robin's love life. (S4 Ep18) [AD,S]
The Front Porch: Karen discovers a woman's earring in Ted's bed and breaks up with him. Ted finds out that Lily planted the earring so he and Karen would split up. (S4 Ep17) [AD,S]
Sorry Bro: Lily and Marshall are dismayed when they hear that Ted is meeting up with his pretentious college girlfriend Karen. Barney plays a prank on Marshall. (S4 Ep16) [AD,S]
Duel Citizenship: Marshall and Ted take a road trip to Chicago. Unfortunately for Ted, Marshall invites Lily along. Robin faces deportation when she breaks an American's nose. (S5 Ep5) [AD,S]
Robin 101: Robin and Barney decide to make their relationship official but Barney finds it difficult to adjust from being a bachelor to being part of a couple. (S5 Ep3) [AD,S]
Definitions: Robin and Barney are puzzled about how they should define their new, non-platonic relationship. Ted's first day as a lecturer doesn't go to plan. (S5 Ep1) [AD,S]
As Fast as She Can: Tony makes a decision about his relationship with Stella after bumping into Ted. Barney tries to get a speeding ticket so he can talk his way out of paying. (S4 Ep23) [AD,S]
The Three Days Rule: Ted's friends pressure him into waiting three days before calling Holly, a girl he likes, and asking her out, but he secretly starts sending her texts. (S4 Ep21) [AD,S]
Mosbius Designs: Ted loses his job and decides to set up his own architecture company in the flat he shares with Robin. Barney tells Marshall how he feels about Robin. (S4 Ep20) [AD,S]
Murtaugh: Barney is banned from playing Laser Quest when Ted tells him that he's too old to take part in the game, so Barney retaliates by behaving childishly. (S4 Ep19) [AD,S]
Old King Clancy: Marshall and Barney learn that Ted's company is about to lose some work and hide this from him. Later, the gang are enthralled by Robin's love life. (S4 Ep18) [AD,S]
The Front Porch: Karen discovers a woman's earring in Ted's bed and breaks up with him. Ted finds out that Lily planted the earring so he and Karen would split up. (S4 Ep17) [AD,S]
Sorry Bro: Lily and Marshall are dismayed when they hear that Ted is meeting up with his pretentious college girlfriend Karen. Barney plays a prank on Marshall. (S4 Ep16) [AD,S]
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. (S2 Ep2) [AD,S]
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. (S2 Ep1) [AD,S]
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. (S1 Ep22) [AD,S]
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. (S1 Ep21) [AD,S]
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. (S1 Ep20) [AD,S]
Nothing Good Happens After 2am: Ted gets into a state of confusion when both Victoria and Robin demand a share of his attention at the same time. (S1 Ep18) [AD,S]
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. (S1 Ep17) [AD,S]
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. (S1 Ep16) [AD,S]
Game Night: Marshall invents a new game - Marshgammon - after winning previous game nights. Unfortunately no one but Marshall understands how to play it. (S1 Ep15) [AD,S]
Drumroll, Please: Ted meets a woman at a wedding. They agree that romance at weddings is false and decide not to swap numbers or surnames. Will Ted stick to their deal? (S1 Ep13) [AD,S]