NBC announced the premieres for its original alternative programs in Summer 2007 that feature the return of last summer's hit America's Got Talent (with new host Jerry Springer) on May 29 as well as an updated edition of the hit series Last Comic Standing (with new host Bill Bellamy) on June 13.

The network also announced the launch of Age of Love reality dating series (with host Mark Consuelos) on June 18. In addition, NBC will reprise the popular weight-loss series The Biggest Loser (with new host Alison Sweeney) in late summer.

Following are descriptions for NBC's summer alternative series in order of premiere dates.

Bringing the variety format back to the forefront of American culture, "America's Got Talent" (May 29) showcases the hottest performers from across the country, with the winner being chosen by the television viewing audience. Each week, the show features a colorful array of hopeful future stars -- singers, dancers, comedic performers and unique acts of all ages who have a chance to strut and perform in front of a panel of celebrity judges.

"Last Comic Standing" (June 13) returns for a fifth season with new host Bill Bellamy, new talent scouts that include "Last Comic Standing" alumni Alonzo Bodden, ANT and Kathleen Madigan -- and an all new quest to find the funniest new comedian in the world. The Emmy Award-nominated series broadens its scope this season by searching internationally for the world's funniest comedian as it holds casting calls in London, Montreal and Sydney, Australia in addition to Los Angeles, New York, Minneapolis, San Antonio and Tempe, Arizona. Celebrity judges will also join the talent scouts as they search for the world's funniest new comic.

NBC is bringing romance back to television this summer with the new reality dating series "Age of Love" (June 18), hosted by popular actor Mark Consuelos. The eight-episode series features a new twist on the reality dating show format.

The first reality series in which everybody "loses," "The Biggest Loser" (late summer) enters its fourth season as it continues to challenge and encourage overweight participants to undergo radical physical makeovers, without any kind of surgery, in a safe and recommended manner through comprehensive diet and exercise as they compete for a grand prize of $250,000. The series has become a worldwide hit, produced a New York Times best-selling book and become a burgeoning online lifestyle club www.biggestloserclub.com .