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.
History of the National Football League on television
The NFL Network was created by the league in 2003 and given a separate package of broadcast games. The eight-game package consisted of prime time games which in 2006 and 2007 began airing from Thanksgiving to the end of the regular season. Five games aired on Thursday nights and three on Saturday nights, the latter beginning Week 15 of the season. Starting in the 2008 season the ratio and dates of the games changed: now there are seven Thursday night games beginning in the first week of November and continuing to Week 16. There is only one Saturday night game, airing during Week 15 or 16 (usually 16, but when Saturday is Christmas Eve, it airs in week 15). The NFL could theoretically decide to sell this package to another network should NFL Network broadcasts not generate enough revenue. NFL Network will also carry several preseason games. The introduction of the NFL Network games also marked the end to late-season Saturday afternoon regular season games on the networks that aired Sunday afternoon games: CBS, Fox and NBC.