"As events transpired," reported Carl Sagan, whose own interest in science was nevertheless sparked by the Fair's gadgetry, "almost no real science was tacked on to the Fair's exhibits, despite the scientists' protests and their appeals to high principles." Promotion of the Fair took many forms. During the 1938 Major League Baseball season, the Brooklyn Dodgers, New York Giants, and New York Yankees promoted the event by wearing patches on the left sleeve of their jerseys featuring the Trylon, Perisphere, and "1939." The same year, Howard Hughes flew a special World's Fair flight around the world to promote the fair. While the main purpose of the fair was to lift the spirits of the United States and drive much-needed business to New York City, it was also felt that there should be a cultural or historical association. It was therefore decided for the opening to correspond to the 150th anniversary of George Washington's first inauguration as President of the United States, and WPA artists painted murals which appeared in the "New York Times Magazine". According to the official pamphlet:  On April 30, 1939, a very hot Sunday, the fair had its grand opening, with 206,000 people in attendance. The April 30 date coincided with the 150th anniversary of George Washington's inauguration, in Lower Manhattan, as the first President of the United States. Although many of the pavilions and other facilities were not quite ready for this opening, it was put on with pomp and great celebration. Plans for the United States Navy Fleet to visit New York City for the opening of the fair following manoeuvers in the Caribbean were cancelled, however, due to aggressive moves being made by Japan in the South China Sea, and the fleet instead transferred to the Pacific via the Panama Canal in April. David Sarnoff, then president of RCA and a strong advocate of television, chose to introduce television to the mass public at the RCA pavilion. As a reflection of the wide range of technological innovation on parade at the fair, Franklin D. Roosevelt's speech was not only broadcast over the various radio networks but also was televised along with other parts of the opening ceremony and other events at the fair. On April 30, 1939, the opening ceremony and President Roosevelt's speech were seen on black and white television sets with 5 to 12-inch tubes. NBC used the event to inaugurate regularly scheduled television broadcasts in New York City over their station W2XBS (now WNBC). An estimated 1,000 people viewed the Roosevelt telecast on about 200 television sets scattered throughout the New York metropolitan area.