#
Name
Orig. Air Date
Video
97.
Slapsgiving 2: Revenge of the Slap
Marshall bequeaths a "slap bet" slap to Ted and Robin; Lily's estranged father (Chris Elliott) visits for... Full summary
11-23-2009
96.
The Playbook
After breaking up with Robin, Barney pulls out all of his greatest tricks to get back into the dating scene.
11-16-2009
95.
The Rough Patch
When Robin and Barney hit a rough patch in their relationship, Lily tries to break them up.
11-09-2009
Available for 10 more days
94.
Bagpipes
Barney's know-it-all attitude gets him in hot water with Robin; Marshall and Lily offer relationship advice.
11-02-2009
93.
Duel Citizenship
Barney wants Robin to become an American citizen; Lily joins Marshall and Ted on their road trip.
10-19-2009
92.
The Sexless Innkeeper
Lily and Marshall come on too strong to impress Robin and Barney, who then try to break off the double-dating.
10-12-2009
91.
Robin 101
Robin investigates when she thinks Barney is cheating on her, only to find that he is spending his time with Ted,... Full summary
10-05-2009
90.
Double Date
Ted realizes that the girl he goes on a blind date with is actually someone he dated years earlier, and that they... Full summary
09-28-2009
89.
Definitions
Lily forces Barney and Robin to face their fears about defining their relationship; Ted is anxious about his first... Full summary
09-21-2009
88.
The Leap
In the fourth-season finale, Ted works feverishly to promote his business while Marshall tries to get him to the roof... Full summary
05-18-2009
1-10 of 97
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