MTV'S "TEEN MOM" SEASON TWO PREMIERE DOMINATES ALL OF TELEVISION AS TUESDAY'S #1 PROGRAM P12-34

HIT FRANCHISE DELIVERS LARGEST AUDIENCE EVER WITH 3.7 MILLION TOTAL VIEWERS

"IF YOU REALLY KNEW ME" DEBUT DELIVERS TOTAL AUDIENCE OF 1.8 MILLION VIEWERS

Teen Mom - 10PM-11:0 0pm ET/PT

· Season 2 premiere of "Teen Mom" was the #1 program across all television for Tuesday (P12-34).

· "Teen Mom" Season 2 premiere delivered a total audience of nearly 3.7 million viewers, a record for the series and a +72% increase versus the "Teen Mom" series premiere.

· Among P12-34, "Teen Mom" delivered a 3.3 rating, +50% versus the series launch.

· The Season 2 premiere of "Teen Mom" delivered a 5.2 F12-34 rating, +63% versus the series debut in December.

If You Really Knew Me - 11PM-12:00am ET/PT

· "If You Really Knew Me" debuted with a strong 1.9 P12-34 rating and a total audience of nearly 1.8 million viewers.

· New series debuted as #1 original cable program in its time period.

· "If You Really Knew Me" is MTV's highest rated new series to launch in its regularly scheduled time period this year.

Source: NMR. 7/20/10 or as dated. L+SD Cvg Rating/000s. Rank on 000s.

About MTV:

MTV is the dynamic, vibrant experiment at the intersection of music, creativity and youth culture. For over 28 years, MTV has evolved, challenged the norm, and detonated boundaries -- giving each new generation a creative outlet and voice that entertains, informs and unites on every platform and screen. On-air, MTV is the number one full day-ad supported network for P12-24. Online, MTV.com averaged 24.5 million monthly unique visitors during the second quarter of 2010 -- up +13% year-over-year. Average video streams for the second quarter of 2010 increased +8% from Q1/2010. And MTV's successful sibling networks MTV2 and mtvU each deliver unprecedented customized content, super-serving young males, music fans, and college students like no one else. MTV is part of MTV Networks, a unit of Viacom (NYSE: VIA, VIA.B), one of the world's leading creators of programming and content across all media platforms.