Marlee Matlin is returning to television in a guest starring role on the upcoming series "Switched at Birth," and she candidly explained to us how she would likely respond if such a blunder would happen to her in real life."If I had found out that one of my kids was switched at birth, all heads would roll," said Marlee, who is a mother of four. "At the same time, I can’t imagine raising a child up to the teen years and then finding out that there's [another] biological mother out there. You never know what that person may be."In the show, Vanessa Marano and Katie Leclerc play two teenage girls who find out that they were accidentally switched at birth. (ETonline.com)