Commercial for Westinghouse light bulbs; shot of a city in the daytime, with lapse photography to show the brief moment at night, right before and as all the lights turn on; male voiceover: “Westinghouse makes electrical products that let man live as fully at night as he does at noon! Westinghouse: a powerful part of your life!” (here, the logo for Westinghouse and the byline appear on the frame)