Factual error: Episode starts "Durham 1966". When Inspector George Gently and Bacchus are questioning the girls on top of the "TV" studio the High Level Bridge is in the background and there are overhead electric masts on the bridge. Railways around Newcastle were not electrified until 1990. (00:22:00)
Inspector George Gently (2007)
1 mistake in season 4
Starring: Lee Ingleby, Martin Shaw, Simon Hubbard
John Bacchus: You're under arrest.
George Gently: He's under arrest, when I say he is.