Pilot: Ted realises he wants to find true love when his best friend Marshall proposes to his girlfriend Lily. Soon, Ted becomes smitten when he meets Robin in a nearby bar. (S1 Ep1) [AD,S]
Purple Giraffe: Ted feels desperate when Robin doesn't turn up to a party he invited her to as a second date and he vows to continue throwing parties until she does. (S1 Ep2) [AD,S]
Sweet Taste of Liberty: Ted agrees that Barney should spice up his love life, as a result of which he ends up flying to Philadelphia for a crazy adventure. (S1 Ep3) [AD,S]
Return of the Shirt: Ted's views about life and love change when he discovers an old shirt that he previously disliked and suddenly loves the look of it. (S1 Ep4) [AD,S]
Okay Awesome: Ted investigates the club scene with Barney and Robin, while Marshall and Lily try to be more 'grown up' as their wedding day approaches. (S1 Ep5) [AD,S]
Slutty Pumpkin: Ted goes to a boring Halloween party hoping to find a girl he lost touch with who dresses as a 'slutty pumpkin'. Robin goes on a double date. (S1 Ep6) [AD,S]
Matchmaker: Ted is coaxed into joining a matchmaking service that Robin has written about and which offers a 100% success rate at finding a soulmate in three days. (S1 Ep7) [AD,S]
The Duel: Ted feels pushed out when Lily and Marshall dominate the household and tells them that he wants to take the flat after they get married, but Marshall wants it too. (S1 Ep8) [AD,S]
Belly Full of Turkey: Ted and Robin are surprised to see Barney when they volunteer at a homeless refuge at Thanksgiving. Lily's nerves are tested at her future in-laws' house. (S1 Ep9) [AD,S]
The Pineapple Incident: Ted goes on a boozy night out to try to stop himself from brooding and wakes up the next morning to find a stranger in his bed. (S1 Ep10) [AD,S]
The Limo: On a determined quest to locate the perfect New Year's Eve celebration, Ted takes his friends to five different parties in order to find the best one. (S1 Ep11) [AD,S]
The Wedding: Ted is relieved when Robin agrees to go with him to his friends' wedding and thinks his luck is changing. The bridal couple, however, don't fare so well. (S1 Ep12) [AD,S]
Sweet Taste of Liberty: Ted agrees that Barney should spice up his love life, as a result of which he ends up flying to Philadelphia for a crazy adventure. (S1 Ep3) [AD,S]
Return of the Shirt: Ted's views about life and love change when he discovers an old shirt that he previously disliked and suddenly loves the look of it. (S1 Ep4) [AD,S]
Okay Awesome: Ted investigates the club scene with Barney and Robin, while Marshall and Lily try to be more 'grown up' as their wedding day approaches. (S1 Ep5) [AD,S]
Slutty Pumpkin: Ted goes to a boring Halloween party hoping to find a girl he lost touch with who dresses as a 'slutty pumpkin'. Robin goes on a double date. (S1 Ep6) [AD,S]
Matchmaker: Ted is coaxed into joining a matchmaking service that Robin has written about and which offers a 100% success rate at finding a soulmate in three days. (S1 Ep7) [AD,S]
The Duel: Ted feels pushed out when Lily and Marshall dominate the household and tells them that he wants to take the flat after they get married, but Marshall wants it too. (S1 Ep8) [AD,S]
Belly Full of Turkey: Ted and Robin are surprised to see Barney when they volunteer at a homeless refuge at Thanksgiving. Lily's nerves are tested at her future in-laws' house. (S1 Ep9) [AD,S]
The Pineapple Incident: Ted goes on a boozy night out to try to stop himself from brooding and wakes up the next morning to find a stranger in his bed. (S1 Ep10) [AD,S]
Last Forever (Part 2/2): The gang are seeing less of each other, but reunite one more time for Ted's wedding. A huge event in his personal life leads Barney to change his ways. (S9 Ep24/24) [AD,S]
Last Forever (Part 1/2): With Barney and Robin's wedding day over, Ted says goodbye to the gang and prepares to leave for a new life in Chicago, but fate has other plans. (S9 Ep23/24) [AD,S]
The End of the Aisle: With only 30 minutes before the wedding, both Robin and Barney are having panic attacks, and Lily and Marshall think about their own wedding vows. (S9 Ep22/24) [AD,S]
Gary Blauman: When an old friend of the gang, Gary Blauman, shows up at the hotel for Robin and Barney's wedding unexpectedly, the seating plan is thrown into disarray. (S9 Ep21/24) [AD,S]
Daisy: Marshall tries to work out where Lily went when she stormed out of the hotel on the night of their big fight. Robin is worried by Barney's pre-wedding behaviour. (S9 Ep20/24) [AD,S]
Vesuvius: On the morning of the wedding, Ted helps a stressed Barney decide which suit to wear. Lily thinks Robin isn't treating her big day with the gravity it deserves. (S9 Ep19/24) [AD,S]
Rally: Barney can't get out of bed on the morning of his wedding because he had too much to drink the night before, so the gang try to make him a famous hangover cure. (S9 Ep18/24) [AD,S]
Sunrise: On the eve of the wedding, Ted and Robin take a walk on the beach and have a heart-to-heart conversation. Marshall finds out that his hotel room is haunted. (S9 Ep17/24) [AD,S]
The Rehearsal Dinner: Barney becomes convinced that Robin is planning to throw him a special wedding rehearsal dinner at the laser tag arena, which infuriates her. (S9 Ep12/24) [AD,S]
Bedtime Stories: To get Marvin off to sleep while they are stuck in traffic on the bus, Marshall creates three rhyming bedtime stories based on the gang's many exploits. (S9 Ep11/24) [AD,S]
The Lighthouse: When Robin and Loretta's conflict escalates, Barney is caught in the middle. Marshall and Daphne deal with a stowaway on their road trip. (S9 Ep8/24) [AD,S]
No Questions Asked: Daphne sends a text message to Lily revealing the truth about Marshall becoming a judge. Marshall begs Ted to sneak into Lily's room and delete it. (S9 Ep7/24) [AD,S]
Knight Vision: Ted finds himself with three prospects to be his date for the wedding weekend, but he chooses poorly about which of the women to spend time with. (S9 Ep6/24) [AD,S,W]
The Poker Game: Robin wins James's ring during a poker game but refuses to give it back, angering Barney's mother Loretta. Ted and Marshall fall out about wedding gifts. (S9 Ep5/24) [AD,S]
The Broken Code: During a poker game, Barney processes his anger at Ted after finding out Ted still has feelings for Robin. Lily realises she is Robin's only girlfriend. (S9 Ep4/24) [AD,S,W]
Last Time in New York: Lily sees the list of things Ted wants to do in New York before he moves to Chicago and frets that she's the only person who knows about his plans. (S9 Ep3/24) [AD,S]
Coming Back: When Marshall struggles to get back to New York in time for the wedding, he is forced to hire a gas-guzzling car. James reveals that he is getting divorced. (S9 Ep2/24) [AD,S,W]
The Locket: The gang all travel to Long Island for Robin and Barney's wedding, but the happy couple make a startling discovery about their families en route. (S9 Ep1/24) [AD,S]
Something New: Robin and Barney's wedding is looming, but Ted tells Lily he's planning to move to Chicago after the ceremony. Marshall takes baby Marvin on a trip to Minnesota. (S8 Ep24/24) [AD,S]
Something Old: Robin is desperate to find her 'something old', which she buried in Central Park years before the wedding, and Barney bonds with Robin's father. (S8 Ep23/24) [AD,S]
The Bro-Mitzvah: Ted and Marshall are determined to arrange a legendary stag night for Barney, while Robin endures a difficult evening out with Barney's adoring mother. (S8 Ep22/24) [AD,S]
Romeward Bound: The Captain asks Lily to move to Rome so that she can act as his art consultant while he lives there, but she frets about the effect on Marshall's career. (S8 Ep21/24) [AD,S]
The Time Travellers: Barney asks Ted to go with him to see a Robots Versus Wrestlers show. Marshall and Robin argue over the invention of a new cocktail at McLaren's bar. (S8 Ep20/24) [AD,S]
The Fortress: As their wedding day approaches, Robin tells Barney that she wants to begin their married life in a new home. Lily's new job takes its toll on her marriage. (S8 Ep19/24) [AD,S]
Bad Crazy: Ted is reluctant to break up with his crazy girlfriend Jeanette, despite the advice of his friends. Robin is intimidated by the idea of holding baby Marvin. (S8 Ep16/24) [AD,S]
P.S. I Love You: Marshall and Lily worry that Ted's new girlfriend Jeanette is a deranged stalker, but Ted insists that their meeting is simply the result of destiny. (S8 Ep15/24) [AD,S]
Ring Up!: Robin is upset when she realises that wearing her new engagement ring makes her feel invisible. Ted begins dating a 20-year-old woman with a wild social life. [AD,S]
Band or DJ?: When Robin learns that Barney failed to ask her father's permission before proposing, she insists that he gets Robin Sr's approval as soon as possible. (S8 Ep13/24) [AD,S]
The Final Page (Part 2/2): Barney tells Ted he plans to make a Christmas proposal to Patrice. Marshall and Lily have their first night away together since baby Marvin's birth. (S8 Ep12/24) [AD,S]
The Final Page (Part 1/2): Ted invites his old university professor, who insisted he would never make it as an architect, to the grand opening of the GNB building. (S8 Ep11/24) [AD,S]
The Over-Correction: Robin grows suspicious of Barney's relationship with Patrice and, thinking that Barney is going through an emotional crisis, tries to split them up. (S8 Ep10/24) [AD,S]
Lobster Crawl: Ted fills in as baby Marvin's nanny as a favour to Lily and Marshall, while Robin is determined to get Barney back, no matter what it takes. (S8 Ep9/24) [AD,S]
Twelve Horny Women: Marshall takes on Brad, who has become his nemesis, in the biggest case of his career, and the gang debate who was the biggest trouble maker as a teenager. (S8 Ep8/24) [AD,S]
The Stamp Tramp: Marshall runs into his old law school classmate Brad, who has fallen on hard times, and decides to help out by recommending him for a job at his firm. [AD,S]
The Autumn of Break-Ups: Victoria drops hints to Ted about wanting more commitment in their relationship. Barney becomes excessively fond of a dog he finds in the street. [AD,S]
Who Wants to Be a Godparent?: Lily and Marshall almost get hit by a car, so they decide to make a will and find a godparent and potential legal guardian for baby Marvin. [AD,S]
Nannies: Lily and Marshall struggle to find a good nanny within their budget for baby Marvin, while Robin and Ted compete over who has the best new relationship. [AD,S]
The Pre-Nup: On the advice of a colleague, Barney draws up an extensive pre-nuptial agreement that leaves Quinn outraged and a war of the sexes develops in the group. [AD,S]
The Magician's Code (Part 2/2): Barney and Quinn take their first holiday together but get in trouble with airport security. Ted gets in touch with his ex-girlfriend Victoria. (S7 Ep24/24) [AD,S]
The Magician's Code (Part 1/2): Lily goes into labour while Marshall is in Atlantic City with Barney, so Ted and Robin try to distract her from her painful contractions. (S7 Ep23/24) [AD,S]
Good Crazy: Despite feigning indifference, Barney is plagued by jealousy as a result of his girlfriend Quinn's job as a stripper and he tries to persuade her to switch careers. (S7 Ep22/24) [AD,S]
The Broath: Barney tries to persuade his friends to meet Quinn and get to know her properly. However, Ted is convinced that Quinn is only after Barney's money. (S7 Ep19/24) [AD,S]
The Burning Beekeeper: Lily and Marshall throw a housewarming party at which Lily's father Mickey causes consternation by admitting he is keeping bees in the basement. (S7 Ep15/24) [AD,S]
The Rebound Girl: Ted and Barney plan to adopt a child together because as men they feel they understand each other better than a man and a woman ever could. (S7 Ep11/24) [AD,S]
Disaster Averted: Barney is desperate to get rid of the ducky tie and drives a hard bargain to be allowed to remove it. Later, the gang reminisce about Hurricane Irene. (S7 Ep9/24) [AD,S]
The Slutty Pumpkin Returns: Ted finally meets the mystery girl who attracted his attention by wearing a pumpkin costume at a Halloween party a decade previously. (S7 Ep8/24) [AD,S]
Noretta: The gang realise that their partners bear some resemblance to their parents. Barney and Nora's romantic evening is ruined by a string of disasters. (S7 Ep7/24) [AD,S]
Mystery vs History: Ted shocks his friends by going on a date without researching the woman on the internet beforehand. Lily and Marshall find out the sex of their baby. (S7 Ep6/24) [AD,S]
Field Trip: When Marshall witnesses his manager's soft approach in settling with a powerful company, he takes matters into his own hands. Ted takes his class on a trip. (S7 Ep5/24) [AD,S]
Ducky Tie: Ted tries to make amends with an ex because he cheated on her during their relationship. Marshall and Lily make a bet with Barney that has an embarrassing forfeit. (S7 Ep3/24) [AD,S]