Warning: major spoilers for all shows listed below.
Closure. It’s an important psychological concept. Without closure, it’s difficult to grieve, move on, make peace and nurture your inner Ewok or whatever it is the self-help books tell us. When a TV show is cancelled before its story has been fully told, the result is an unscratchable itch.
That itch can have positive side effects. The creativity for instance, of fanfic and fan art, and the tenacity and camaraderie of doggedly pursued fan campaigns. The less positive side though is, well, not so pretty. Sleepless nights, anxiety at work, a tendency to grasp total strangers by the shoulders with both hands, hot stress-tears streaming down your cheeks, and cry “So did Lois and Clark raise that baby or what?