This short video clip (less than three minutes) on heat radiation is a subset of the Full 25 minute clip. That was the only 1956 motion picture of Prof. White lecturing that we could find. The initial frames are a photo of Prof. White in the actual TV Physics classroom, but the video clip was taken from a contemporaneous film clip (for TV) made in the same year, 1956, on the same subject, physics, and addressed to the same level of audience, high school. The video clip shows a TV program called Science in Action that was produced in 1956 at the California Academy of Sciences in San Francisco.