which show had the worst finale

True Blood.

True Blood, the show peaked with Maryann and it was all downhill from there.

Dexter had 2 finales, 1 awful and 1 that was worse. Series final had Deb die. A few years later, Showtime exhumed the series’ corpse and named it Dexter: New Blood . Died after 1 painful season, and Dexter died along with it. In the category, Worst Series Finale, Dexter was twice as bad as True Blood.