A memorable opening TV credits sequence can hook the viewer within minutes, hint at settings and future plot points, and cause the intro to linger in the minds of viewers for years to come. The opening credits act as the viewer’s first impression of a show, and along with the TV show’s theme song, are typically the first mental association formed with a series. At some point or another, everyone has experienced their favorite show’s theme getting stuck in their head, which is not only due to the music but also the visual sequence.

https://screenrant.com/10-tv-shows-with-brilliant-opening-credit-sequences/