LOS ANGELES (AP) — Jim Parsons cherished the opportunity to work with Stephen Hawking, but admitted he was a bit intimidated to meet the celebrated theoretical physicist. Hawking or his voice appeared in seven episodes of Parsons' hit series "The Big Bang Theory." "So much of our show is related, based on, adjacent to everything that Stephen Hawking did, strove to do, thought about, was passionate about through his entire life and career.