In the era of Hammer Films, the ABC gothic soap opera "Dark Shadows" was a hit from 1966-1971!
(Wikipedia) It was unprecedented in daytime television when ghosts were introduced about six months after it began. The series became hugely popular when vampire Barnabas Collins (Jonathan Frid) appeared a year into its run. Dark Shadows also featured werewolves, zombies, man-made monsters, witches, warlocks, time travel, and a parallel universe.
New generations are rediscovering the nostalgic, moody, campy and brooding series.
A classic line - Barnabas Collins: For most men, time moves slowly, oh so slowly, they don't even realize it. But time has revealed itself to me in a very special way. Time is a rushing, howling wind that rages past me, withering me in a single, relentless blast, and then continues on. I've been sitting here passively, submissive to its rage, watching its work. Listen! Time, howling, withering!