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Quotes
Marshall: You should definitely go. Look, it's a chance to show her you are still friends and that you support her.
Barney: Or it's a chance to mess with her head by showing up with someone hotter, or even better, triple threat, hotter and bigger boobs!
Ted: That's only two.
Barney: Count again.
Mistakes
When Barney is at the apartment in his Top Gun costume, the position his helmet is in on the coffee table changes between shots. Sometimes the front of the helmet faces the camera, at other times it is sideways. See more...
Trivia
When Ted and Robin are at the restaurant, they are accidentally sent a champagne glass with an engagement ring in. A man then claims the ring and proposes to his girlfriend. This couple really did get engaged on the show - the guy set up the surprise proposal, as his girlfriend thought they were just there as extras. See more...
Below is a list of every episode on the site for How I Met Your Mother which has mistakes in it - if your favourite episode's not listed, that just means it's flawless! So far... "All of series 1" and similar entries are those mistakes which apply an entire series, but not across the whole show. They're also counted as episodes, so don't be surprised if the total up top doesn't reflect the actual number of episodes recorded for a show. This list is ordered by series, then episode title by default - click the options below to change the ordering.