20. Homeland, Season 2 (Showtime; September 30, 2012 - December 16, 2012)
Anyone who followed the critical reception of Homeland during the show's recently concluded second season knows that the deepest hope harbored by the show's most ardent fans and favorable critics was that the show wouldn't "become 24." While most fans agree that the show didn't hit the levels of superficial action and beyond belief antics of later seasons of the Keifer Sutherland hit, the critical community was generally disappointed with the second season of this Emmy-winner.
The first season was crafted cleanly while avoiding the logical leaps that so many "spy shows" often fall into; season 2, on the other hand, presented a number of character, plot, and even technology problems that gave viewers pause and left them hoping for a return to form in the third season.