It's not a show, and typically one would play that game of "never read this" fairly unironically. But the webcomic Homestuck starts off REALLY slow and takes a few hundred pages to really even become interesting. It was so long ago, but I'm guessing page 246 was when I started to legitimately be interested in it. And I would say it finally gets good at page 1149.
So why did I read 245 pages of a story I wasn't very much interested in? The music, pretty much. I had already known Toby Fox had worked on something called Homestuck because of the history behind Another Medium (YouTube), and then I encountered this track (YouTube) in the wild and decided to read it at least until I reached the page this music is from.
Also, if you look at it purely for the ratio, getting good 1/8 of the way through is a little better than standard.

TIL that dumb is defined as having scored less than 100 IQ.
Anyway, I've worked enough customer service to say with some confidence that I've met at least a few people who truly just exist and let the world happen to them with zero curiosity.