DW used to appeal to more "children of all ages", which didn't need to be put onto niche preschool channel to fit the revamped tone of the latest era (which does, I know people who love it, I know others who loathe it, and others in between. Whee.) To think the show in the 60s and 70s treated kids a lot differently than now, and they loved it for whatever appealed to them and rewatched to understand what adults often saw at the time back then. The claim that it's to get kids in younger makes no immediate sense when the show was doing that since day one (1963). (Or what's what I keep reading and hearing on fan channels)