Babylon 5 — just the perfect scifi show for me with a five-season story arc that was planned from the beginning.

Others: Farscape, Buffy the Vampire Slayer, Dark, The West Wing, Community, She-Ra and the Princesses of Power

It should probably be a book the reading of which would be most beneficial to everyone. That’s a high bar pointing to some form of practical philosophy. I’d go with an introduction to Buddhism, something like What the Buddha Taught by Walpola Rahula though perhaps there are others better suited for a general audience.