#8 Ballers (HBO)
HBO canceled the comedy drama starring Dwayne Johnson after five seasons. While the network didn’t provide any reason behind the cancellation, the Stephen Levinson-created series saw a significant drop in ratings after its third season. Ballers was an instant hit for HBO when it started, but with the second season of its stablemate Barry following hot on the heels of the final season of Games of Thrones, Ballers was soon eclipsed. For instance, Ballers’ series finale only managed to pull in 500,000 viewers while Barry’s Season 2 finale drew a whopping 2.21 million viewers.