Comedian Jimmy Kimmel has found love on the set of his late night show. His rep confirmed to PEOPLE that Kimmel has been dating Molly McNearney, a longtime staffer on his ABC show, for several months. "After Jimmy and Sarah broke up, Molly and Jimmy both found themselves single, and they clicked," a source close to Kimmel said. "They're really happy together."

While the relationship may draw comparisons to David Letterman's recent revelations, the insider says, "during work hours, they keep things professional."