Eileen-oneill Eileen O’Neill, the exec who stepped in and turned TLC into a powerhouse thanks to shows like “Jon and Kate Plus 8,” has been handed the keys to the mother Discovery Channel ship as well.

As part of a massive executive restructure Wednesday, O’Neill was named Group President for both Discovery and TLC, the two flagship channels of Discovery Communications in the U.S.

Discovery Channel president/GM Clark Bunting remains, but will now report to O’Neill. Move was one of several that will streamline the number of execs reporting into Discovery Communications prexy/CEO David Zaslav.

“Eileen is a home-grown Discovery talent with a 21-year track record of success that is nothing short of astounding,” Zaslav said. “Each network she led has been infused with creativity, innovation and content that breaks through the clutter of the television landscape.”

Meanwhile, Discovery also announced that Animal Planet prexy/GM Marjorie Kaplan will now serve as president of both Animal Planet and Science Networks. That means Science Channel GM Debbie Myers now reports to Kaplan.

Also, Investigation Discovery/Military Networks prexy/GM Henry Schleiff will now oversee Discovery’s Emerging Neworks, Planet Green and Fit TV. As part of the change, Planet Green prexy/GM Laura Michalchysyn will report to him.

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