I enjoy watching it because of the interesting vistas, technologies, constructions, etc. I also like that it has several short features for each episode. I find it a nice break from my personal problems and those of our country and the world. As a news junkie I need breaks from the intensity at times.
This program is formulaic with regular hosts and guest presenters who are knowledgeable about each site. Each feature has teasers early in the episode. There are spaces for commercial breaks when it switches from site to site as it rotates between the several sites for the episode, gradually revealing more about each site as the program progresses. This design is to keep you hooked through to the end, and to entice you to wait through any commercial breaks, if you are not streaming.
I have one very slight pet peeve with the narrator; since atoms have nuclei, not nuculei, we speak of nuclear (new-clee-ur) rather than the common mispronunciation nucular (new-queue-lur). Rather unacceptable given the nature of the show and it’s intended audience. (It is true, I am a grammar snob. I don’t do this kind of thing in the real world, but for professionally produced programs it is fair game.)