Factual error: The Pakistan Army uses British-style rank insignia with the crown replaced with The Star and crescent of Pakistan. The ISI officers are all wearing another badge instead of The Star and crescent. They are also wearing black gorget (collar) patches, whereas they should be wearing scarlet. Lt Col Khan and a number of other more junior officers should not be wearing gorget patches at all, as they are restricted to full colonels and above. ISI officers do not have a separate uniform; they wear ordinary military uniform if they are entitled to it.
Homeland (2011)
1 mistake in Season 4 generally
Starring: Claire Danes, Damian Lewis, Morena Baccarin, Mandy Patinkin
Question: As his wife, why does Jessica address Brody by his last name instead of his first name?
Chosen answer: Everyone else calls him Brody or Sgt. Brody, and it probably became habit to her.
The_Iceman
Can't get the source but I read that even the Producer responded to that. Stating that it was common practise for a military wife living in a military complex as everybody refers to their husband by their last name.