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".
Buffy the Vampire Slayer (season 1)
The first season of the television series Buffy the Vampire Slayer premiered on March 10, 1997 as a mid-season replacement on The WB and concluded its 12-episode season on June 2, 1997. The first season aired on Mondays at 9:00 pm ET.