Isabelle Tyler

With the talent search open to acts of all ages, America's Got Talent has brought the variety format back to the forefront of American culture by showcasing performers from across the country. The series is a true celebration of the American spirit, featuring a colorful array of singers, dancers, comedians, contortionists, impressionists, jugglers, magicians, ventriloquists and hopeful stars, all vying for their chance to win America's hearts and the $1 million prize.

Big Brother follows a group of people living together in a house outfitted with dozens of high-definition cameras and microphones recording their every move, 24 hours a day. Each week, the Houseguests will vote someone out of the house. At the end, the last remaining Houseguest will receive the grand prize of $500,000.

Project Runway designers are given an opportunity to launch their careers in fashion.

On Last Week Tonight with John Oliver, John Oliver presents a satirical look at the week in news, politics and current events.

Saturday Night Live is an Emmy Award-winning late-night comedy showcase.

Since its inception in 1975, "SNL" has launched the careers of many of the brightest comedy performers of their generation. As The New York Times noted on the occasion of the show's Emmy-winning 25th Anniversary special in 1999, "in defiance of both time and show business convention, 'SNL' is still the most pervasive influence on the art of comedy in contemporary culture." At the close of the century, "Saturday Night Live" placed seventh on Entertainment Weekly's list of the Top 100 Entertainers of the past fifty years.