Five years later, David Sarnoff helped create NBC.

VOA: special.2010.01.31

David Sarnoff was the man responsible for NBC.

VOA: special.2010.01.31

David Sarnoff developed the theory of broadcasting.

VOA: special.2010.01.31

David Sarnoff, at the helm of NBC TV talked about opera for the masses.

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As immigrant children, Andrew Carnegie and David Sarnoff knew what it meant to miss a meal.

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Nineteen thirty wasn't a banner year for David Sarnoff.

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