The Man in the Long Black Coat - S2-E8
Other mistake: Eric Idle is called Dr Melvin Whale, but according to the subtitles he is called Dr Melvin Mile.
The Executioner's Song - S6-E1
Other mistake: The lady opposite wants to watch the large TV through the Meldrews' window, but when you see the windows, they are frosted and it would be impossible for her to see the TV. (00:16:30)
Chosen answer: The episode is 'The Pit and the Pendulum' The first episode of series 4.
James Ransford ★