Promotes television sets and the broadcast of New York's first regularly scheduled programs by providing a clinical look at the inner workings of television, including the manufacture of the tubes, lab experiments, and an actual telecast. Shows RCA's production studios in Rockefeller Center, television demonstrations at the 1939–40 New York World's Fair, RCA's Empire State Building transmitter, and remote mobile broadcast units. One of a variety of "Reelisms" shorts produced by Frederic Ullman Jr. and Frank Donovan for RKO in the late 1930s.