This show's obviously cashing in on the Twilight/True Blue/vampire love fad, but I really don't think you can call it a knock off of Twilight or Buffy, considering that the first Vampire Diaries were written before either of those came out (including the Buffy movie). The basic story is the same as in the book, even if the plot is different.

It's good that a lot of it is different, though, cos the books are kind of lame. (They're much more original than Twilight, but yeah. Not difficult) The vampires can't even have sex in the Vampire Diaries world. What the hell is that about? Like, not even that they don't WANT to, they CAN'T. It just seems demented to me, writing a series of books about this 'epic' love, and then a few books down the line the writer's like, oh yeah, by the way, none of these characters will EVER EVER have sex with each other. Why? WHY? I don't get it.