Top 20 Countdown: Most Shocking - All Episodes

Set in the middle of the jungle, "The Challenge: War of the Worlds 2" returns to a classic team format; 14 Brits will battle it out against 14 Americans for their share of the $1 million-dollar 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.

MasterChef Australia is an Australian competitive cooking game show consisting of a group of hopeful contestants that cook and present food to judges in order to win the title of MasterChef Australia.

What would happen to planet earth if the human race were to suddenly disappear forever? Would ecosystems thrive? What remnants of our industrialized world would survive? What would crumble fastest? From the ruins of ancient civilizations to present day cities devastated by natural disasters, history gives us clues to these questions and many more in the visually stunning and thought-provoking special, Life After People.

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.