The quiz program is shown as a TV show complete with cameras on set but is sometimes referred to as a radio show, so it must be broadcast simultaneously on both media.
When Ronald Colman, Barbara Britton and others watch TV in the shop window they would not be able to hear any sound through the store glass. However, to draw crowds to sell TVs or just attract customers, stores circa 1950 mounted loudspeakers to carry broadcast sound to passersby in front.