Since I discussed Historical, Pseudohistorical and Celebrity Historical episodes all together in series one, I thought I'd look at three futuristic styles together in series two. You probably wouldn't actually run them back-to-back.
Anyway, this is where series two started, and I only did it last week, so what the heck.
Something futuristic interacts with the past or present. It seems alien and strange to characters from earlier times, but is of purely human creation.
3: The time is out of joint...
Example: Voices From Beyond
A house is supposedly haunted. Visitors report glimpses of strange figures, voices from empty rooms, a feeling of cold... and the effect seems to grow stronger every year.
This is because the haunting is from the near future, getting closer to the present with each passing day as a result of an experiment with a broken piece of time travel technology on the site of the house... and as the haunting intensifies, it becomes a warning of a disaster about to happen. But can it be stopped, or would stopping it create a paradox?