The Return - S6-E20
Factual error: The year is 1940, and in the opening shot (as the name Richard Thomas appears on the screen) we have a view of Lower Manhattan as seen from the East River below the Brooklyn Bridge, but the problem is some of the buildings we see did not exist in 1940, such as One Chase Manhattan Plaza, which did not begin construction until 1957. (00:01:40)
The Return - S6-E20
Factual error: Right before the scene with John-Boy and Daisy at the restaurant, there's a shot of Times Square, and two of the marquees advertise the 1946 movie "The Jolson Story," and the 1946 movie "The Best Years of Our Lives," and also reads "Picture of the Year" which it won at the 1947 Academy Awards, but this episode takes place in 1940. (00:05:30)