Continuity mistake: In episode one, Alex Drake logs on to the computer in Gene Hunt's office. A shot shows the date: 17-07-1981. However, on a wall calendar Alex creates at her flat, the date of July 20th 1981 is circled, with the word "ARRIVED" written in large letters. That implies she arrived in 1981 on July 20th and not the 17th. So, which is the correct date, and what happened to the 18th and 19th July 1981?
Factual error: In Series 1 Episode 1, Alex wakes up in her new flat, and the song "Ashes to Ashes" can be heard. But the record player is on the very last track of David Bowie's "Scary Monsters" album, and "Ashes To Ashes" is the second to last track. Also, the label of the LP is the wrong color for the original 1980-81 release of the "Scary Monsters" LP: when it was released, the label was plain black with white writing, but Alex's version seems to have some characters across the middle.