CBS announced premiere dates for a diverse slate of original summer programming that will include a celebrity game show competition, secrets of women in suburbia and the return of two popular reality series.

Highlighting CBS's original summer programming are Gameshow Marathon, an elimination-style game show competition featuring celebrities playing classic television games; Tuesday Night Book Club, a titillating peek into the lives of a group of real middle class women in suburbia; Rock Star: Supernova, a competition show to find the lead singer for the new super rock group, Supernova, made up of legendary performers from some of America's biggest rock bands; and Big Brother 7: All-Stars, the seventh edition of the summer reality hit that will reunite some of the most memorable, entertaining and controversial houseguests from previous Big Brother seasons as they compete for the $500,000 grand prize.

"Together, these offerings represent everything viewers seek in summer entertainment -- games, guilty pleasures, escapism and energizing music," said Nina Tassler, President, CBS Entertainment. "We think the combination of these light and fun new offerings with re-broadcasts of our top-rated comedies and dramas can make CBS the ultimate summer vacation destination for television viewers."

Gameshow Marathon, hosted by Emmy Award-nominee Ricki Lake (The Ricki Lake Show) and based on the hit U.K. game show Ant & Dec's Gameshow Marathon, will be broadcast twice weekly for two weeks beginning Wednesday, May 31 (8:00-9:00 PM, ET/PT) and Thursday, June 1 (8:00-9:00 PM, ET/PT) and the following week Wednesday (6/7) and Thursday (6/8) before settling in to its weekly regularly scheduled Thursday (8:00-9:00 PM, ET/PT) time period on June 15.

Gameshow Marathon features six celebrity contestants competing in a weekly elimination-style tournament in which they play different classic game shows each episode including The Price Is Right, Let's Make a Deal, Beat the Clock, Press Your Luck, Card Sharks, Match Game and Family Feud. Celebrities participating include Tim Meadows (Saturday Night Live), Leslie Nielsen (Airplane), Kathy Najimy (Sister Act), Lance Bass ('N Sync), Paige Davis (Trading Spaces) and Brande Roderick (Baywatch). A champion will be crowned at the end of the competition. In addition, the program will include a viewer participation element whereby they will have a chance to win the celebrity's grand prize each episode through a wireless (text message) trivia game that enters viewers into a sweepstakes.

Tuesday Night Book Club, a one-hour series which follows the lives of a group of real women in a middle class suburb as they deal with the day-to-day pressures of raising kids, maintaining households, satisfying their husbands and even revealing their intimate secrets, premieres Tuesday, June 13 (10:00-11:00 PM, ET/PT). Tuesday Night Book Club will explore the good, the bad and the surprising elements of life in suburbia as seen through the eyes of a group of women who get together each Tuesday night to reconnect and discuss everything in their lives, from sex to spouses to inner-most conflicts.

Rock Star: Supernova returns for its second edition with two weekly broadcasts, beginning with a special premiere on Wednesday, July 5 (8:00-9:00 PM, ET/PT), followed by another special broadcast on Thursday, July 6 (9:00-10:00 PM, ET/PT) before moving to its regularly scheduled Tuesday (9:00-10:00 PM, ET/PT) and Wednesday (8:00-9:00 PM, ET/PT) time periods the following week. This year's edition will feature an all-star line-up of rock musicians who will join forces to form the new rock super group, Supernova. The new super group will use this summer's Rock Star: Supernova as the competition to determine their new lead singer. Members of Supernova, featuring drummer Tommy Lee (Motley Crue), Jason Newsted (Metallica) and Gilby Clarke (Guns N' Roses) will take over couch duty with returning co-host Dave Navarro to judge the rock singers. Co-host Brooke Burke returns for stage introductions when the hopeful vocalists begin the quest to become Supernova's new lead singer. The winner will record an original CD with Supernova, to be co-written and produced by Butch Wagner (hit songwriter/producer for Avril Lavigne and Pink), that will be released in the fall before the band embarks on a world tour in early 2007.

Big Brother 7: All-Stars, hosted by Julie Chen, premieres Thursday, July 6 (8:00-9:00 PM, ET/PT) and will be broadcast three times weekly on Tuesday (8:00-9:00 PM, ET/PT), Thursday (8:00-9:00 PM, live eviction show, live ET/delayed PT) and Saturday (9:00-10:00 PM, ET/PT). This seventh edition will, for the first time, let America help choose who will participate in the game from among a pool of 20 of their favorite former houseguests.

The following is CBS's summer schedule effective Wednesday, May 31:

Wednesday, May 31

8:00-9:00 PM :Gameshow Marathon (Premiere)

9:00-10:00 PM : Criminal Minds

10:00-11:00 PM : CSI: NY

Thursday, June 1

8:00-9:00 PM : Gameshow Marathon (Time Period Premiere)

9:00-10:00 PM : CSI

10:00-11:00 PM : Without A Trace

Wednesday, June 7

8:00-9:00 PM : Gameshow Marathon (Special Broadcast)

Tuesday, June 13

10:00-11:00 PM : Tuesday Night Book Club (Premiere)

Thursday, June 15

8:00-9:00 PM : Gameshow Marathon

Wednesday, July 5

8:00-9:00 PM : Rock Star: Supernova (Premiere)

Thursday, July 6

8:00-9:00 PM : Big Brother 7: All-Stars (Premiere)

9:00-10:00 PM : Rock Star: Supernova (Special Broadcast)

Tuesday, July 11

8:00-9:00 PM : Big Brother 7: All-Stars (Time Period Premiere)

9:00-10:00 PM : Rock Star: Supernova (Time Period Premiere)

10:00-11:00 PM : Tuesday Night Book Club

Saturday, July 15

9:00-10:00 PM : Big Brother 7: All-Stars (Time Period Premiere)