Trivia: For this episode, writer Peter J. Hammond borrowed his own idea - from a story he first used in the 1979 Sapphire & Steel series. There, ghosts from old photographs came to life and could trap the living inside the pictures. Here, very similar mischief is afoot, with the ghosts coming out of old silent films instead.
Trivia: When the team arrive at the bar, Captain John Hart (played by James Masters) comments that there is no blond in the gang - perhaps a reference to Buffy, leader of the other gang Masters belonged to in Sunnydale.
Answer: Several times during the episode, most notably at the beginning when the old grave is discovered, Tosh holds a devise that looks a great deal like the Sonic Screwdriver that she uses to determine the age of the skeleton. However, a search of Google images shows that it is not the same thing.
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