Continuity mistake: When Marshall and Lily approach the reception desk at The Wedding chapel, Marshall's cocktail moves from his right to his left hand instantly between shots. (00:07:55)
Continuity mistake: At the courthouse, we see Marshall, Lily and Barney walk around the corner towards the bench twice, from two different angles.
Continuity mistake: At the courthouse, when Lily is eating red licorice from the vending machine, the piece she is eating gets longer between shots.
Continuity mistake: When they are watching the music video on the small screen on the table, there is a bottle of JT Cola next to the screen in the close ups. When it goes to a wide shot, it is suddenly replaced by a beer bottle. However, in the previous shot before the commercial break it is a JT Cola bottle in the same spot as the beer bottle.
Continuity mistake: At the apartment when Marshall gives Lily the red cocktail, the green paper umbrella moves from facing away from Lily to facing towards her between shots.
How Lily Stole Christmas - S2-E11
Continuity mistake: When Ted, Robin and Barney are having a meal at the bar, we see Robin lift her drink to her mouth, then the shot changes to another angle and we see her lift the drink again.
How Lily Stole Christmas - S2-E11
Continuity mistake: When Ted, Robin and Barney are at the bar, discussing the fact that Barney is ill, the level of the drink in Robin's glass goes up and down between shots.
How Lily Stole Christmas - S2-E11
Continuity mistake: When Marshall and Ted are on the phone to one another, the string from Ted's hoodie changes position between shots, much of this may be because he is moving his hand due to being on the phone. However the right string goes back and forth from being caught on the collar of his jacket to hanging straight down over his jacket just before he is on the phone to his mother.
First Time In New York - S2-E12
Continuity mistake: During Ted's second flashback to how he lost his virginity to Molly (the real story), as Molly gets out of bed you can see she's already wearing pants, but after we cut she stands up and starts putting them on.
First Time In New York - S2-E12
Continuity mistake: At the airport, Lily and Robin are talking off to the side away from others. During the scene, the cameras shoot from in front of the two actors and from behind Lily. From the frontal view, Lily's two headbands are white and gold-jeweled. The white headband is closest to her forehead. When the camera shot switches from front to behind, the headbands are switched on her head. The gold one is now closest to her forehead and the white one is behind.
Suggested correction: If you look closely, you can see that the headband is actually symmetrical, so the black strap is on top and in the middle of a larger white headband and never changes. (camera angle makes it often seem both from the front as from the back as if there is no white part behind the black).
First Time In New York - S2-E12
Continuity mistake: When Robin is talking to her sister Katie in the Empire State Building lobby, Katie's bag moves between shots. Sometimes she wears it with the strap hanging straight down from her shoulder, in other shots the strap goes across her chest like a messenger bag.
Continuity mistake: When Ted sits down to talk with Hammond Druthers after discovering that Druthers is living at the office, Hammond pours them both a J. Buckley whiskey. When Hammond places the bottle down the label is facing towards Ted. The camera then swaps to Ted and upon swapping back to Hammond, the label is facing away from Ted. Hammond is describing his wife as "quite mannish." The camera swaps to Ted. Upon swapping back to Hammond, when he continues with "She gives me what I need", the bottle has been rotated so that the label faces towards Ted again. (00:11:40)
Monday Night Football - S2-E14
Continuity mistake: When the gang are about to watch the Super Bowl, Marshall is holding a chicken wing which vanishes from his hand when the camera angle changes.
Monday Night Football - S2-E14
Continuity mistake: In the classroom, Marshall squirts juice on to the boy's clothes then puts the juice pouch flat on the table. In the next shot, the pouch is standing upright.
Continuity mistake: In this episode we learn that Barney doesn't know how to drive. But throughout the whole series there are reference that he actually does, such as: In 'Come On' (22nd episode 1st season) : Penelope says to Barney: "We had sex twice in your car." In 'Moving Day' (18th episode 2nd season) : Barney drives away with Ted's rental van. In 'The Bracket' (14th episode 3rd season) : Barney stole Holly's SUV as they were camping.
Suggested correction: This has been corrected before. Barney does not know how to drive at the time of the subway strike in 2005, but does learn how to drive at some point shortly after that. And it's not until Moving Day (the very episode after this) that we see Barney driving. He does not have to drive in Come On, he just has to own a car.
Moving Day - S2-E18
Continuity mistake: In the final scene when Barney is reading his top ten list, the piece of paper moves from his left to right hand and back in an instant between shots,.
Continuity mistake: In the car, just after Barney discovers they are not headed for Atlantic City, the DVD screen that has been hanging down from the car roof is suddenly stowed away between shots.
Continuity mistake: When Lily's mother is looking at the gift Lily has just opened, the blue bow on the gift vanishes and then reappears between shots.
Continuity mistake: When Ted is giving up with Marshall's best man speech he is holding a pen in his hand as well as a beer bottle. In the next shot the pen disappears and he is just holding a beer bottle. In the next shot the beer is on the coffee table and Ted drops the pen onto the coffee table.
