At Hearst, Sassa was on the board that oversees A&E and also oversaw Hearst's investment in Mark Burnett Productions. He shepherded History's hit miniseries The Bible as their first production together and served as executive producer. Sassa, who joined Hearst in December 2008, was an NBC executive from 1997-2004. While president of NBC Entertainment from October 1998 to May 1999, he oversaw shows that included The West Wing, Law & Order: SVU and Scrubs. Sassa also has served as president and CEO of Friendster, president of Turner Entertainment Group, president and COO at Andrews Group and CEO of Marvel Entertainment. He also was one of the first people hired at Fox and served as a vp before being fired by co-founder and then-chief Barry Diller for essentially being in over his head.