High Quality Content by WIKIPEDIA articles! The third season of the television series Buffy the Vampire Slayer premiered on September 29, 1998 on The WB Television Network and concluded its 22-episode season on July 13, 1999. It maintained its previous timeslot, airing Tuesdays at 8:00 pm ET. Two episodes, "Earshot" and "Graduation Day, Part Two", were delayed in the wake of the Columbine High School massacre because of their content.