Being set thirty years after the original comics, there are bound to be parts that are confusing, but I guess the writers felt that most people watching would have a reasonable grasp of the original material, exposition would only add unnecessary’bulk’, better to let the story unfold as it would in a book, or comic, in the same way the original did, and that was monthly, not weekly!
Some might be interested in the soundtrack, which is by Trent Reznor and Atticus Ross; it’s being released on vinyl, in a series with different artwork, to follow the flow of the series. There will be a digital download, but no other physical release than vinyl.
https://io9.gizmodo.com/watchmens-incredible-soundtrack-is-coming-first-to-viny-1839237242