Season 4, Episode 19 (Murtaugh): Barney tries to complete, in one day, all the tasks from a list Ted made to prove the gang's not too old to do. Meanwhile, he challenges Ted to complete a list of things they're too young to do.
Season 4, Episode 18 (Old King Clancy): Marshall and Barney lie to keep Ted from finding out the headquarters he'd been hired to design has been canceled.
Season 4, Episode 17 (The Front Porch): Ted is shocked to learn that Lily is responsible for many of his breakups with ex-girlfriends, including Karen. Meanwhile, Marshall defends his wearing of a nightgown to bed.
Season 4, Episode 16 (Sorry, Bro): Ted's college girlfriend reenters his life and Marshall and Lily remember how much they hated her.
Season 4, Episode 15 (The Stinsons): Suspecting he has a secret girlfriend, the gang follows Barney when he leaves MacLaren's and discovers that he seems to have been keeping a family secret from them.
Barney explains that only 'the living' should wear suits; 'the dead' should be naked.
Barney and Marshall make a bet over what Robin's secret is - that she was either a porn star or secretly married. Winner slaps loser.
Barney reveals Robin's secret name "Robin Sparkles" and her online porn identity.
Robin falls into horse crap during a newscast.
Clips from season one including interviews with Josh Radnor, Jason Segel, Cobie Smulders, Neil Patrick Harris, Alyson Hannigan, Bob Saget and creators Carter Bays and Craig Thomas
Ted gets drunk and immediately starts drunk-dialing Robin and making a fool of himself at the local bar, but his friends like it.
How I Met Your Mother: Season 3 clip - starring Josh Radnor, Jason Segel, Cobie Smulders, Alyson Hannigan, Neil Patrick Harris, Bob Saget.
Robin tries to stop the sportscast so she won't hear the Super Bowl score.
Ted and Marshall discuss his imminent engagement.
1980's Canadian pop sensation Robin Sparkles sings her hit single "Let's go to the Mall"
Lily talks Marshall into having sex by revealing she's not wearing underwear.
Marshall and Lily have sex on the kitchen floor followed by Marshall taking out Lily's eye with a champagne cork.
A look behind the scenes of "How I Met Your Mother"
Marshall and Ted pray that Tivo record the Super Bowl, or they will destroy Tivo.
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