The Ultimate Vampire Resource and Directory

a TV documentary series that was broadcast weekly from 1976 to 1982. It was created after two successful hour long TV documentaries, In Search of Ancient Astronauts in 1973 (based on the book Chariots of the Gods), and In Search of Ancient Mysteries in 1975 both with narration by Rod Serling. After the untimely death of Serling, Leonard Nimoy was chosen to be the host of the spin-off series.

The series conducted "investigations" into the pseudoscientific and paranormal (e.g., UFOs, Bigfoot, and the Loch Ness Monster). Additionally, it featured episodes about mysterious historical events and personalities such as Anna Anderson/Grand Duchess Anastasia, the Lincoln Assassination, the Jack the Ripper murders, infamous cults (e.g. Jim Jones), and missing persons, cities, and ships (e.g., Amelia Earhart, Jimmy Hoffa, D.B. Cooper, the Mary Celeste, the Titanic, the lost Roanoke Colony). Because the show often presented offbeat subjects and controversial theories, each episode's opening credits include a verbal disclaimer about the potentially conjecturable nature of the evidence and theories to be presented:

"This series presents information based in part on theory and conjecture. The producer's purpose is to suggest some possible explanations, but not necessarily the only ones, to the mysteries we will examine."