I think in a such polarized world, it is almost impossibile to do a good quality-tv show for families. I mean, imagine an episode where they say that trans people have rights. Really, there would be a Capitol-style assault on studios.
I prefer a Trek show for us streaming viewers and not just something that appeals to the lowest common denominator. For that there are the countless L&O shows.
And maybe I'm not a big connoisseur of the American television scene, but what is considered a good quality family TV show broadcast on your national networks?
I’m not American. Doctor Who was squarely aimed at the family audience from its inception, but sometimes that wanders when it gets caught up in itself. It hasn’t been consistently family viewing since the late Capaldi era, but that era also produced some fine allegory SF, in a way the current era fails magnificently at.