Date: It is late April 1915 (after the British had secured Hill 60, but before the Germans took it back).

The march playing during the first scene (1') is It's A Long Way To Tipperary, written by Jack Judge in 1912. It became one of the most popular songs of WWI.

At 3'09", Hudson uses the phrase, "Hoist with his own petard." This comes from Hamlet by Shakespeare (who, according to the dialogue, is Mrs Bridges' favourite poet), and is an idiom which means to be defeated by the backfiring of one's own plan. (Thanks to Darrel C Karl for this observation.)

Edward background: His father is currently building an army camp in Folkestone. His mother is at his Aunt Ivy's house in Watford. He claims he is a virgin (although loses his virginity at the end of the episode).

Goof: The events of this episode clearly happen over the period of a few days (there is time for a newspaper article to be written and published, and for James' army job to be changed etc.) but at 5'37" Edward says he is on leave for just the weekend.

Goof: After James has been in the house for just five minutes, Hudson seems to have arranged for a bath to be run without being asked (James might want to eat, sleep, or have a drink first) (12'49").

Goof: As James eats his sardines in silence, we hear a voice from the studio say: "Right, thank you..." (13'14")

Rooms: The shape of (and positions of the door and windows in) the dining room makes little sense when we consider its location within the house (at the front of the house, to the right of the front door as we look towards it). At 15'02", Hudson and Edward seem to exit the room (unseen) via another door on the other side of the room – this would exit well into the house next door!

Hazel background / James background: They both play golf (24'36").

The scene where Edward and Daisy go to the cinema was shot at the Electric Cinema in the famous Portobello Road in west London.

Goof: During the scene in the cinema, the pianist plays a brief snatch from Alice Blue Gown (27'01") by Harry Tierney. This song was actually introduced four years later in a musical stage play called Irene, which opened on Broadway on November 18, 1919. (Thanks to James Knuttel for sending that one in.)

Goof?: The colonel remarks that he assumed James pulled some strings to get himself the comfortable position on the general staff. But then he begins to reprimand James, apparently already knowing that James was forcibly moved into this job from above. (37')

Daisy background: She says she is a virgin (but loses her virginity at the end of the episode).