Ryan Seacrest Is No. 1 on THR's Reality Power List

"I've been involved in a lot of what I would call 'modest flops,' " Paul Telegdy admits of such lackluster-performers as Dance War: Bruno vs. Carrie Ann and Grease: You're the One That I Want. "But I'm still going to carry on." The Los Angeles-based executive, who joined NBC in 2008 from BBC America Worldwide, is betting big that The Voice, producer Mark Burnett's adaptation of the Dutch hit, won't resemble even a modest flop when it bows April 26. Telegdy worked closely with Burnett and his team to select Christina Aguilera, Cee Lo Green, Blake Shelton and Adam Levine as judges. "It was all-consuming over many months," he says, adding that the show will promote "relentless positivity," similar to his feel-good ratings-grabber The Biggest Loser, which heads into its 12th cycle this fall. With such reliable performers as America's Got Talent (last summer's most-watched show for 14 of its 16 weeks on the air), The Sing Off (it grew 28 percent in the ad-coveted 18-49 demographic in its second season) and Celebrity Apprentice (currently the top-rated show in its Sunday time period), Telegdy is poised to usher in the next big thing -- cautiously, of course. "It's hard as hell to launch any new show," he admits. "We're 110 percent committed to The Voice. We'll see if we know what we're doing."