KELSEY GRAMMER, BEN STILLER, MAROON 5 AND THE ROOTS ADDED TO COMEDY CENTRAL'S� LIVE ON-AIR CHARITY SPECIAL "NIGHT OF TOO MANY STARS: AN OVERBOOKED CONCERT FOR AUTISM EDUCATION" HOSTED BY JON STEWART ON SUNDAY APRIL 13, AT 8 P.M. ET

--------------------------------------------------------------------------------

Appearances By Will Arnett, Matthew Broderick, Steve Carell, Stephen Colbert, Susie Essman, Will Ferrell, Tina Fey, Jonah Hill, Kevin James, Conan O'Brien, Rosie O'Donnell, Amy Poehler, Adam Sandler, Sarah Silverman, Triumph The Insult Comic Dog And Many More To Be Announced

--------------------------------------------------------------------------------

NEW YORK, March 31, 2008 -- COMEDY CENTRAL announced today that Kelsey Grammer, Ben Stiller, Grammy Award-winning band Maroon 5 and The Roots have been added to the line-up for its bi-annual live on-air special event, "Night Of Too Many Stars: An Overbooked Concert For Autism Education." On Sunday, April 13, at 8:00 p.m. ET, live from the Beacon Theatre in New York City, the benefit for Autism education programs will feature Jon Stewart hosting an evening filled with live performances, sketches and short films from a roster of comedy all-stars.

Performers raising money to help ease the severe shortage of effective schools and education programs for autistic children and adults include Fred Armisen, Will Arnett, Matthew Broderick, Tom Brokaw, Steve Carell, Stephen Colbert, Susie Essman, Will Ferrell, Tina Fey, Will Forte, Kelsey Grammer, Jonah Hill, Kevin James, Maroon 5, Rosie O'Donnell, Amy Poehler, Conan O'Brien, Adam Sandler, Sarah Silverman, Ben Stiller, Triumph The Insult Comic Dog and many additional talent to be announced. The Roots will be the house band for the evening.

Beginning on Tuesday, April 15, "Night of Too Many Stars" will be available for download on iTunes and xBox Live Marketplace for 30 days. All proceeds from the $1.99 download will go directly to the charity. In addition, comedycentral.com will stream the entire broadcast online on Monday, April 14. Users will have the opportunity to donate to the charity via the Web site.

The October 2006 "Night Of Too Many Stars: An Overbooked Benefit For Autism Education" raised more than $2.5 million.

"Night Of Too Many Stars" will benefit a variety of Autism education programs around the country. The funds raised will support educational facilities that have recently opened or are about to open their doors, along with those already well-established model schools that are now developing innovative programs to provide vocational and life skills for adults with autism. Proceeds will also support outreach programs that provide training and consultation to families of very young children in their homes. Additionally, a portion of the proceeds will benefit Autism Speaks, the nation's leading autism advocacy group.

COMEDY CENTRAL, the only all-comedy network, currently is seen in more than 91 million homes nationwide. COMEDY CENTRAL is owned by, and is a registered trademark of, Comedy Partners, a wholly-owned division of VIACOM Inc.'s (NYSE: VIA and VIA.B) MTV Networks. COMEDY CENTRAL's Internet address is www.comedycentral.com. For up-to-the-minute and archival press information and photographs visit Press Central, COMEDY CENTRAL's press web site at www.comedycentral.com/press.

MTV Networks, a unit of Viacom (NYSE: VIA, VIA.B), is one of the world's leading creators of programming and content across all media platforms. MTV Networks, with more than 150 channels worldwide, owns and operates the following television programming services - MTV: MUSIC TELEVISION, MTV2, VH1, mtvU, NICKELODEON, NICK at NITE, COMEDY CENTRAL, TV LAND, SPIKE TV, CMT, NOGGIN/THE N, VH1 CLASSIC, MTVN INTERNATIONAL and THE DIGITAL SUITE FROM MTV NETWORKS, a package of 13 digital services, all of these networks trademarks of MTV Networks. MTV Networks connects with its audiences through its robust consumer products businesses and its more than 300 interactive properties worldwide, including online, broadband, wireless and interactive television services and also has licensing agreements, joint ventures, and syndication deals whereby all of its programming services can be seen worldwide.