Can't believe this series seems to be so obscure, since it is nicely done. It aired on the History Channel, but has disappeared, though can be seen on some DVD releases, notably "The Amityville Horror" Trilogy release in 2005(in time for the remake), where the two-part look at the Amityville Horror phenomenon is an extra disc in the set, and very interesting and objective look at the controversy.
Good theme, and Peter Kent gives capable narration, though it isn't as atmospheric and stylish as "Unsolved Mysteries" or "In Search Of...", it is still respectable, and not dumbed down reality junk we see on the air today.
Give it a look!