Jan Carl has served as Regis Philbin's guest co-host on Live With Regis for two consecutive days, leading to talk that the Entertainment Tonight hostess is a front-runner to permanently succeed Kathie Lee Gifford. "Nobody's been on more than Jan Carl," Philbin joked on today's Live. "[She's] wanting this job so bad she can taste it." Carl was not about to argue the point. "I really want the show," she confirmed. A Live spokesperson had not returned our calls at press time.