<a href="https://en.wikipedia.org/wiki/NBC" id="mwkg" rel="mw:WikiLink" title="NBC">NBC</a> inaugurates its regularly scheduled <a href="https://en.wikipedia.org/wiki/History_of_television#Mechanical_television" id="mwkw" rel="mw:WikiLink" title="History of television">television</a> service in New York City, broadcasting President <a href="https://en.wikipedia.org/wiki/Franklin_D._Roosevelt" id="mwlA" rel="mw:WikiLink" title="Franklin D. Roosevelt">Franklin D. Roosevelt</a>'s <a href="https://en.wikipedia.org/wiki/1939_New_York_World's_Fair" id="mwlQ" rel="mw:WikiLink" title="1939 New York World's Fair">N.Y. World's Fair</a> opening day ceremonial address.