The Bletchley Circle: San Francisco

Not a bad show with some interesting characters and good use of San Francisco. My problem is that we are told that the show is set in 1952. There is talk of someone being shipped off to Vietnam, possible but America did not start shipping troops there until the mid 60's. In one scene people are listening to music that sounds like it comes from the late 60's in an era before rock and roll. They also talk about converting a mono record player to a stereo player six years before stereo records were on general release. Then a character mentions the British invasion, if he is talking about music, he is over a decade ahead of his time. These anomalies take me out of the story. It is somewhat lazy writing, research is easy, it is basically what the show is about.