In the episode "He Who Kills", one of the museum security guards is reading a "Dark Shadows" comic book, and enthuses about how he used to rush home from school to watch it. Dan Curtis directed the TV show "Dark Shadows" (1966).
Lysette Anthony starred as Angelique in the 1991 Dark Shadows revival series on NBC in prime time, which was based on the ABC daytime gothic soap opera of the same title which ran from 1966 to 1971, both were produced by Dan Curtis, as was Trilogy Of Terror (1975) starring Karen Black & Trilogy Of Terror 2 (1996) starring Lysette Anthony . . .