For me it was GoT, I just thought the miniature landscapes looked way too cool. Also I am watching Kimmy Unbreakable which has a theme song that I think is pretty catchy.
It’s an anime, and nearly cheating but for me it was Mushoku Tensei Season 1
There was an intro song, but while it was playing there would be B Rolls of whatever part of the setting was pertinent for the episode.
It was awesome, but then they did a normal intro for Season 2, which struck me as a bad decision.