How I Met Your Mother (2005)

The Naked Truth - S7-E2

Revealing mistake: While showing the clip of Marshall streaking the first time, you can see thumbnails for videos of him streaking in New York. Those videos were created later that day and could not already be posted. One also shows a woman in yellow and appears to be a retake of the scene. (00:06:15)

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.

Bad News - S6-E13

Trivia: Throughout the entire episode Bad News (Season 6, Episode 13), there's a number in every scene. These numbers are a countdown for the news that Marshall will get at the very end of the episode.

Douglasac

Show generally

Question: Out of Ted's kids in 2030, who is meant to be the older?