Other mistake: The recap of Episode 4.1 has a scene that hasn't been shown until episode 4.2 or 4.3 where the FBI neighbor gets hold of Jennings in his garage to confront him on his alleged affair with his wife. The similar issue with another episode is seen in episode 3.12 or 3.13. (01:00:00)
Other mistake: When Phillip is in the pastor's office, the book Partners in Power can be seen on the bookshelf behind the pastor. That book was published in 1996, and pertains to the Presidency of Bill Clinton.
In Control - S1-E4
Other mistake: Reagan was shot in March, but Elizabeth is digging her crate from the ground with autumn leaves around her.
Other mistake: Elizabeth states her father died in Stalingrad when she was 2, which was 1942-1943, and she claims she came to America at 22 when it was 1965 and she would have been 24-25.
