The Vampire Diaries
The series premiere of "The Vampire Diaries" on September 10, 2009, gave The CW its biggest series premiere, scoring 4.91 million viewers. Adding in DVR numbers, the ratings for the premiere swelled to an official 5.7 million viewers. In 2016, a "New York Times" study of the 50 TV shows with the most Facebook Likes found that "as with several other shows that focus on the supernatural", "The Vampire Diaries" was "slightly more popular outside of cities. That said, the show's fandom has the smallest amount of spatial variation of all 50 shows".
The Vampire Diaries (novel series)
The series was originally published in 1991-1992 and it revolves around Stefan Salvatore and Elena Gilbert as the two main protagonists. The first three novels in the original series ("The Awakening, The Struggle", and "The Fury") all feature Stefan and Elena as the narrators of the series, while the last book in the original series, "Dark Reunion", is from Bonnie McCullough's viewpoint.