THR's Women in Entertainment 2012: Power 100

After a precipitous ratings decline and a reorganization that saw several execs exit Nickelodeon, the network is beginning to recover. According to Pivotal Research analyst Brian Wieser, Nickelodeon's U.S. operations bring in $900 million in ad revenue, a significant portion of Viacom's $5 billion global ad revenue. Zarghami, 49, whose portfolio includes Nickelodeon, Nick Jr., TeenNick and Nicktoons, has greenlighted 10 new series for fall 2013. And the network's reboot of Teenage Mutant Ninja Turtles is averaging 3.2 million viewers, making it the top-rated program in its Saturday morning slot.

Moment I knew I wanted to work in the business: After I'd been at Nickelodeon for two years and finally learned the science behind programming a schedule.

Who gave me my first big break: [Former head of MTV Networks] Judy McGrath really believed in me.

Toughest decision I had to make this year: To reorganize a team that had brought us so much success for so many years.

When I leave work each day, I can't wait to: See my husband, George, and sons Liam, 16, Ethan, 10, and Wyatt, 6.

Favorite way to unwind on the weekend: A good wrestling match with my three sons -- all at once -- usually calms me down.

My indulgence: Another night with Edward and Bella.

Can't get through my workday without: Starbucks, and at least 45 minutes studying the ratings charts.

Most surprising song you might find on my iPhone: "Clique" by Kanye.

When my relatives are confused about what I do, I tell them: "I make SpongeBob."

Click here to read THR's complete Women in Entertainment list.