1. 'The Leftovers,' HBO

Having read the Tom Perrotta novel, I wondered how the heck HBO would do a second season, let alone a third, after using up all of the source material in the first season. But each season got better, with the story evolving from a quirky science fiction tale to a heartwarming romance between characters played by Justin Theroux and Carrie Coon. Why it earned so little Emmy recognition befuddles me.

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