In the discussion between Doc Roe and Renée they first address each other with the formal and polite second person plural 'vous'. When they ask each others names Doc Roe shifts to using the informal first person singular 'tu' and 'toi'. When Doc Roe departs Renée speaks to him as 'vous' again. This would be unusual between two young people, who are on friendly terms with each other, and have already told their first names to each other.
Prior to the closing credits, and title card states "The story of 'The Battle of The Bulge' as told today is one of Patton coming to the rescue of the encircled 101st Airbourne". As '101 Airborne' is a proper noun, specifically the name of a unit, changing the spelling to comply with English norms would be considered a misspelling.
Towards the end of the episode, when Harry Welsh gets hit in the leg and Doc Roe patches him up Roe paints an 'M' on Welsh's forehead with his blood, both of Roe's hands are practically soaked with Welsh's blood. However, in the next shot, Roe's hands are perfectly clean again.
At the end when Doc Roe is returning and gives 'Babe' Heffron the bandage on his hand, he has a shadow on either side. The shadows are visible in the second shot in the woods just before he passes the two men talking and Winters' foxhole.