Murdoch.com - S2-E10
Factual error: Enid, the telegraph operator, exclaims that "He is sending an SOS." However, in the 19th century, distress calls did not include the letters "SOS," It was not until the early 20th Century that SOS was chosen as the international distress call.
The Annoying Red Planet - S1-E13
Factual error: Golf balls did not have inverted dimples until 1905, the exterior covers were dark, rougher and probably with an interior of wood. The white golf balls used by Murdock to illustrate a point had not been invented at that time.
Factual error: In the opening scene when the men in orange sashes are greeting each other, you can briefly see one of the men in an orange sash wearing what are quite obviously modern sunglasses. Even if the glasses were meant to be from the period, sunglasses were not mass-produced or widely available until the late 1920's.
Factual error: Everyone is standing in front of a sandstone building. The construction date literally carved in stone above is MCMXXX or 1930 - long after the show is set.
Suggested correction: The show is set in the early 1900's, which is the early 20th century. By the time this event transpired, SOS would have been established as a universal distress signal.
The show starts in 1895 and by season 2, it was still the 19th century and before Germany adopted SOS in 1905.
Bishop73