According to Patrick Dempsey, the rumors that Katherine Heigl and T.R. Knight are leaving Grey's Anatomy are much exagerated. "We all signed the same contract," Dempsey told Barbara Walters on The View Wednesday monrning, after mentioning that there are two more years on his contract. "As far as I know nobody's leaving the show… We should all be happy to have jobs." Heigl and Knight, who are best friends, have long been rumored to be unhappy with their long contracts with the hit series. (Photo: WENN)