Television debuted to the masses of the United States at the 1939 World's Fair held in New York when RCA head David Sarnoff introduced the TRK-12 which was the first set available for purchase by the public. Sarnoff also headed the group that began television broadcasts by granting the newly formed NBC the rights to cover the opening ceremonies and fair events and eventually a regular broadcast schedule that would consist of 2 hours in the afternoon and about an hour in the afternoon. the evening, what we now know as "Prime Time". Later that year, as television ownership and viewership continued to grow at an approximate rate of 10% per week, NBC broadened the scope of what it would broadcast from produced shows to broadcast shows of live events. This would include the introduction of live sports broadcasts on the television platform. On May 17, 1939, a college baseball game between Ivy League rivals Princeton and Columbia became the first sports broadcast on television. The game, ironically, continues with an extra inning with the Princeton Tigers winning 2-1. The single camera was positioned on a 12-foot high wooden platform and sent signals through a coiled cable to an amplifier truck which then amplified the signal to an antenna placed on top of a flag pole and would eventually be picked up via radio waves on the 85th floor of the Empire State Building in Manhattan. That signal would then be relayed to the approximately 3,000 (yes, that's all) televisions in the viewing area. To put into even greater perspective how impressive the television viewership numbers were and how this would impact the sport, it should be noted that the 3,000 people watching the match on television were 7.5 times more than the 400 fans in attendance ... in the middle of the newspapers ... from ESPN, NBC Sportsnet and Fox Sports. As the advent of new technologies continues, we are left to continue exploring new aspects of the transmission of these events. From on-screen displays in games like the "Line of Scrimmage" and "First Down" lines in a football game, to the score, game clock, pitch count, and positions in a baseball game, sports television is an ever-evolving medium and now a source of as much information about the event as it is fun to watch and with this element of intrigue the number of viewers continues to grow. From 3,000 to 10 million to a projected 115 million viewers of the 2014 Super Bowl, which explains all the reasons why all sports telecasts are now not only some of the most watched programs but also the most profitable broadcasts in the history of television business.