A crowd is shown in front of a retail television store with a large number of sets for sale. In late 1940 and early 1941 there were only a few thousand sets in the entire US; commercial sales didn't begin until after WWII.
Near the end of the episode FDR is holding a press conference. One of the newsmen is using a Bolex H-16 model Rex 4 16mm movie camera. This model was not introduced by Bolex until 1965.