Another series with excellent costumes and knitwear! For some reason, I avoided "The Bletchley Circle" when it first aired in 2012 or '13, then started watching it on Netflix about a year ago, and though I don't remember much at all now about the mysteries, I was intrigued by the characters themselves, the relationships between the four women and the way the four actresses pulled everything together. I was also -- all right, I'm a knitter! -- charmed by the sight of Susan (Anna Maxwell Martin) knitting in her sitting-room.
("Dear Sir" spotting: "The Bluebell Railway is excellent to stage late 1940's or early 1950's scenes on trains, but when selecting stock for trains supposed to be working out of St. Pancras Station it was careless to use a locomotive of the Southern Railway. St. Pancras was on the London Midland & Scottish Railway until nationalisation in 1948, when it became British Railways.... What is more, the bus that appears is an RML type which was not built until 1961 and in a livery that dates to the mid 1970's, the stations shown on the route board for the Barking line are incorrect (East Ham!!!), and a character mentions the Gospel Oak to Barking line but at this date the route ran via Kentish Town, not Gospel Oak."...!)