History of the National Football League on television
NBC was the first major television network to cover an NFL game, when on October 22, 1939, it broadcast a game between the Philadelphia Eagles and the Brooklyn Dodgers; the network was still only in its infancy, with only two affiliates, the modern day WRGB (now a CBS affiliate) in Schenectady and W2XBS in New York City. Portions of that game still survive via films, but the film is not footage from the telecast (recordings of television broadcasts did not begin until 1948). The use of a sideline camera, the sole camera used in the 1939 broadcast, would become the standard for all future NFL broadcasts until 2017; the angle is particularly suited for estimating yardage, compared to more mobile camera angles that began to appear in the 21st century.
Major League Baseball on NBC
NBC television's relationship with Major League Baseball technically dates back to August 26, 1939. It was on that particular date that on W2XBS (an experimental television station in New York City which would ultimately become NBC's flagship station, WNBC), the first-ever Major League Baseball game was televised. With Red Barber announcing, the Brooklyn Dodgers and the Cincinnati Reds played a doubleheader at Ebbets Field. The Reds won the first game 5–2 while the Dodgers won the second, 6–1. Barber called the game without the benefit of a monitor and with only two cameras capturing the game. One camera was on Barber and the other was behind the plate. Barber had to guess from which light was on and where it pointed.