This story contains MODERATE SPOILERS for the first season of NBC’s update to “Knight Rider.” What would “Knight Rider” on NBC be without Michael Knight? Apparently, the show’s producers don’t want to find out. According to SciFi Wire, David Hasselhoff, who played the lead character in the original “Knight Rider” on NBC, is working out final details so he can appear on the new show during its first season. He also might be bringing the original KITT with him. “He may make an appearance later this season,” said Executive Producer Gary Scott Thompson during an interview on the show’s California set recently. “He is talking to NBC next week, and we are working out everyone’s schedule.” What would Michael Knight be doing if or when he appears? “I don’t want to put him in just …