Buffyverse

comic book limited series

television production company

The Buffyverse or Slayerverse is a media franchise centered on the supernatural drama television series Buffy the Vampire Slayer and Angel, created by Joss Whedon. The term also refers to the shared fictional universe in which the TV series are set. Originally coined by fans of the series, it has since been used in the titles of published works, and adopted by Whedon.

Wikimedia disambiguation page

Wikipedia article covering multiple soundtrack releases