America’s Got Talent is an American reality television series on the NBC television network.
It is a talent show that features amateur singers, dancers, magicians, comedians and other performers of all ages competing for the advertised top prize of US$1 million.
The show debuted in June 2006 for the summer television season.
The show concept can be traced back to the British talent contest Opportunity Knocks, which started as a radio program in 1949 before moving to television in 1956.
Among its significant features were that it gave an opportunity to talented amateurs or unknown performers and its results were decided by a public vote.
For the audition round, each of the three judges has a button in front of them that they can press when they do not want the act to continue; in season one, the button rings an electronic bell and a large red X with the judge’s name lights up over the stage. A louder buzzer indicates the third judge’s button was pressed, and the contestant’s performance is terminated. In season two, only a buzzer is heard when a judge hits his/her button. If all three judges hit their X in season 2, the performer is illuminated in a lonely blue spotlight, indicating that they’ve been struck out. This is not as significant as it might be, since the judges occasionally cheat and press one another’s buttons to abort even if a consensus of disapproval has not been reached. Then, the judges are asked whether the contestant should continue to the next round, with the approval of two out of three judges required. The button voting is not final, and occasionally a supporting judge can talk a disapproving one into switching sides. From there, the contestant is either rejected or passed to the next round of performance. The process is similar to the classic spoof amateur show The Gong Show, except that an act was ended by just one judge on Gong with no deliberations to follow.
The acts who pass the auditions will attend a Las Vegas bootcamp, where they will have a chance to perfect their craft. At this point, acts are divided into 2 groups, “music”, and “variety”. The music acts consist of singers and instrument players. The “variety” group consists of other acts. The “music” acts performs first, followed by the “variety” acts. Each act will perform for 3 minutes, and their performance will not be terminated, as the judges have no buttons to press. After each group has finished, the judges will split the groups into lines, either a “yes” line, or a “no” line. The ones who the judges said yes to will go to the short list of 35 acts. The acts which the judges have said no to will go home. After that, the judges will cut the short list of 35 to 20 final acts. In the semifinal episodes, the 20 acts will be first split into 2 groups of 10. America will vote and eliminate 5 out of the first group, than 5 out of the second. The remaining 10 will perform head to head in the next round, where the field will be narrowed each week.