When the gang teases Robin about not being a real New Yorker, she sets out to prove them wrong by racing to catch a glimpse of Woody Allen.

Marshall and Lily make a secret pact to start trying to have a baby if they ever finally see Barney’s doppelganger. Meanwhile, Robin finally gets an offer for her dream…

When Ted attends his mother’s wedding, he is extremely disturbed by her overly affectionate relationship with her fiancé, which forces him to think about his own life and make an…

When Ted and Barney jeopardize Robin’s new relationship by professing their love for her, Robin realizes that she is finally over them. Meanwhile, after spending a weekend sleeping in twin…

When Ted, Marshall, Lily and Barney crash a highfalutin party at a swanky New York apartment, Ted gets the chance to mingle with the snooty guests and show off his…

When Ted takes a date to see a new hit movie, “The Wedding Bride,” he is shocked to learn the story is loosely based on his life, and that it…

When Lily and Marshall forget to fix up Ted on a blind date for Valentine’s Day, they use one of Barney’s many discarded girls to see if they may become…

When the gang tries to convince Ted that he is being strung along by Tiffany, they reflect about relationships where each of them has been in the same situation.

When Robin confesses that she is still angry with Barney for the way he handled their break-up, she enlists the help of Anita, a self-help author who plans to beat…

When Ted ruins Lily’s birthday dinner celebration by bringing a date, Lily goes to great lengths to keep her out of the traditional photo she takes every year of the…

When Marshall gets mugged, Lily decides she wants to get a gun for protection, so Marshall comes up with a convoluted story about the mugging to deter Lily from following…

When Marshall picks up smoking again, it prompts Lily, Ted and Barney, ex-smokers all, to succumb as well. Meanwhile, Robin gets a new co-anchor at her show…

When Barney debates giving up wearing suits in order to land a hot bartender, his conflicted feelings lead to an amazingly awesome musical number. Meanwhile, Ted gets one step closer…

When Lily refuses to believe that Jenkins, Marshall’s attractive female colleague, kissed him, Marshall insists Jenkins tell Lily what really happened. Meanwhile, Robin finds out that a drinking game has…

When Barney is about to complete the perfect week – landing seven different girls in seven days – the gang roots him on in order to forget about their own…

Lily comes up with a perfect plan to break up the relationship between Barney and Robin when they have a rough patch, but she needs help from Robin’s famous friend,…

After his relationship with Robin ends, Barney dusts off his “playbook” to help him back into the dating scene

Barney freaks out when Marshall bequeaths a “slap bet” slap to Ted and Robin. Meanwhile, Lily’s estranged father shows up for Thanksgiving.

When a perfect girl finally shows up, the gang tries everything to help Ted, while Marshall takes action when he discovers a letter written by younger himself.

When Robin fears that Barney is cheating on her, she soon discovers that he is spending his evenings with Ted learning everything there is to know on how to date…

Marshall and Lily want to hook up with Barney and Robin for double-dating and fun, but their desperate eagerness to please is a huge turn-off. Meanwhile, when a succession of…

Barney tries his best hoping to convince Robin into becoming an American citizen, while Ted and Marshall’s road trip takes an unexpected turn for the worst when Marshall invites Lily…

Even though they do their best in order to be the perfect couple, Barney’s attitude of know-it-all lands him in trouble with Robin and they are forced to seek Marshall…

After sharing a kiss at the beginning of the summer, Robin and Barney are unsure how to handle their mutual attraction. After some consideration they tell the gang they have…

Barney takes Marshall, and Robin to a strip club where they find a stripper who looks almost exactly like Lily. Meanwhile, Ted discovers he had been fixed up with the…

Ted ponders how being in the right place at the right time can impact a person’s life; Barney celebrates his 200th female conquest.

Ted is trying to find a new job, and when an old acquaintance tries to help nothing goes as planned. Barney tries to smooth talk his way out of a…

Ted is trying to keep his architecture firm afloat by doing an all-nighter, but Marshall tries to lure him to the roof for a surprise 31st birthday party, on the…

When Barney learns Ted has a list of things he thinks the gang is too old to do, he sets out to do every task within 24 hours in order…

Ted goes out on his own as an architect and hires an intern to help get things started, but the intern gets a little too close to others in the…

Ted breaks one of Barney and Marshall’s relationship rules, texting a woman he recently met, so the pair play a joke on Ted by pretending to be the woman.

Ted learns that not only did Lily plant another woman’s earring in his bed for Karen to find, she has meddled in some of his other relationships as well.

Marshall and Barney lie to keep Ted from finding out the headquarters he’d been hired to design for GNB has been cancelled.

Lily and Marshall try to continue their airport reunion tradition. Barney and Ted offer to keep MacLaren’s open during a blizzard so they can meet up with some college girls.

Robin, desperate to find a job before she is deported, agrees to let Barney produce a video resume for her.

The gang thinks that Barney must have a secret girlfriend after noticing his bizarre behavior.

Marshall and Lily are less than thrilled when they hear that Ted’s college girlfriend (Laura Prepon) has moved to New York.

The gang learns a new way to get their dates to sleep with them after Ted walks in on Robin’s date sitting naked on the couch.

Ted (to prove he’s not a milquetoast) and Barney (to impress Robin) pick a fight with a group of guys sitting in the gang’s favorite booth at MacLaren’s.

Ted tries to keep his irresponsible sister from hooking up with Barney during her trip to New York, and Robin starts hanging out with Marshall at a bar for Minnesotans,…

Ted and Robin discover that sex with each other solve their fights as roommates, which makes Barney very jealous and angry. Meanwhile, Marshall reveals that he’s too embarrassed to use…

When Ted is packing his stuff for his move to New Jersey, he discovers that the gang was going to hold an intervention for his engagement to Stella and demands…

Ted and Stella move up their wedding date, but the wedding may not go off as planned after Ted breaks the “No Exes Rule” and invites Robin to come in…

A serendipitous meeting with someone from his past has Ted thinking about how he would handle running into someone he would prefer to forget.

Barney creates a holiday to celebrate not being a father. Meanwhile, Lily and Marshall are considering having a baby, but Lily first wants advice from Ted and Robin.

A birthday party for one of Lily’s co-workers leads to Robin connecting with a group of single partiers known as the “Woo Girls”. Ted presents a plan for Goliath National…