
S05E01 Definitions
Sep 21, 2009When the gang finds out that Barney and Robin are hesitant to define their relationship, Lily forces them to confront their biggest fear...becoming boyfriend/girlfriend. Meanwhile, Ted is anxious about teaching his first lecture at Columbia.
30m

S05E02 Double Date
Sep 28, 2009While on a blind date, Ted realizes this is actually his second first date with the same girl, and seven years later they still have nothing in common. Meanwhile, Barney takes Marshall out on the town, much to the dismay of Robin.
30m

S05E03 Robin 101
Oct 5, 2009When 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 her.
30m

S05E04 The Sexless Innkeeper
Oct 12, 2009When Lily and Marshall realize that Robin and Barney are the perfect double-date friends, they try too hard to impress and come on too strong, forcing Barney and Robin to try to break up with them.
30m

S05E05 Duel Citizenship
Oct 19, 2009While Barney tries to convince Robin to become an American citizen, Ted and Marshall's fabled road trip takes a wrong turn when Marshall invites Lily.
30m

S05E06 Bagpipes
Nov 2, 2009To prove that he and Robin are the perfect couple, Barney arrogantly gives relationship advice to Marshall, which results in a huge fight between Marshall and Lily.
30m

S05E07 The Rough Patch
Nov 9, 2009After Barney and Robin hit a rough patch in their relationship, Lily devises the perfect plan to break them up, calling in help from Robin's famous friend, Alan Thicke.
30m

S05E08 The Playbook
Nov 16, 2009When Robin and Barney break up, Barney pulls out all of his greatest tricks to get himself back into the dating scene.
30m

S05E09 Slapsgiving 2: Revenge of the Slap
Nov 23, 2009Barney freaks out when Marshall bequeaths a "slap bet" slap to Ted and Robin. Meanwhile, Lily's estranged father shows up for Thanksgiving.
30m

S05E10 The Window
Dec 7, 2009The gang tries to help Ted when the perfect girl is finally available, and Marshall takes action when he finds a letter written by his younger self.
30m

S05E11 Last Cigarette Ever
Dec 14, 2009The gang struggles to quit smoking while Robin clashes with her new jaded co-worker.
30m

S05E12 Girls vs. Suits
Jan 11, 2010When 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 to meeting the future mother of his kids.
30m

S05E13 Jenkins
Jan 18, 2010When 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 been made up about her.
30m

S05E14 Perfect Week
Feb 1, 2010When 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 miserable week.
30m

S05E15 Rabbit or Duck
Feb 8, 2010When 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 Ted's future wife. Meanwhile, Robin's obnoxious colleague invites her to a party at his apartment.
30m

S05E16 Hooked
Mar 1, 2010When 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.
30m

S05E17 Of Course
Mar 8, 2010When 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 Barney at his own game.
30m

S05E18 Say Cheese
Mar 22, 2010When 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 gang.
30m

S05E19 Zoo or False
Apr 12, 2010When 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 through.
30m

S05E20 Home Wreckers
Apr 19, 2010When 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 impulsive decision.
30m

S05E21 Twin Beds
May 3, 2010When 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 beds, Marshall and Lily decide to get twin beds at home.
30m

S05E22 Robots vs. Wrestlers
May 10, 2010When 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 intellectual side.
30m

S05E23 The Wedding Bride
May 17, 2010When 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 was written by Tony, the man Stella left him for at the altar.
30m

S05E24 Doppelgangers
May 24, 2010Marshall 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 job.
30m