On a Wing and a Prayer - S4-E7
Character mistake: FO Woodham drops James in Darrowby. James gives a proper RAF salute (palm forward). Woodham responds with a US style salute (palm down).
All Creatures Great and Small (2020)
1 character mistake in season 4 - chronological order
Starring: Anna Madeley, Samuel West, Nicholas Ralph, Rachel Shenton
Factual error: Siegfried referred to aftershave as 'cologne'. A Yorkshireman would not do this in the 1940s.