Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Shekaru da yawa, an gano NBC sosai tare da David Sarnoff, wanda ya yi amfani da shi azaman abin hawa don siyar da kayan masarufi. RCA da Sarnoff sun kama hankali ta hanyar gabatar da talabijin na lantarki ga jama'a a 1939 <unk> 40 New York World's Fair, a lokaci guda suna fara shirye-shiryen shirye-shirye a tashar talabijin na NBC-RCA a Birnin New York. Shugaba Franklin D. Roosevelt ya bayyana a wurin baje kolin a gaban kyamarar NBC, ya zama shugaban Amurka na farko da ya bayyana a talabijin a ranar 30 ga Afrilu, 1939 (ainihin, hoton da ba a gani ba na watsa shirye-shiryen FDR yana samuwa a David Sarnoff Library). An watsa shirye-shiryen ta hanyar tashar talabijin ta NBC ta New York W2XBS Channel 1 (daga baya WNBC-TV; yanzu WNBC, tashar 4) kuma kusan masu kallo 1,000 ne suka gani a cikin tashar kusan mil 40 (64 km) daga mai watsawa a Ginin Empire State.  Tambaya: Daga wane wuri ne WNBC ta New York ta fara watsa shirye-shirye?
Ginin Jihar Empire