Celebs in 'Jeopardy!'

The Scene: Backstage at the second annual Celebrity Jeopardy! tournament (Nov. 8-12), where 15 savvy stars-including Frasier's Kelsey Grammer, Love & War's Jay Thomas, and comedian Paula Poundstone-pace, practice, and try to get ''that buzzer thing'' right before competing in a rapid-fire test of trivia smarts. *Pregame Fear: ''Knowing an answer but blanking,'' says MTV's Tabitha Soren. Host Alex Trebek allays fears, saying, ''The celeb shows were meant in fun. We just want to make sure everyone has a good time and, like the Army says, have them be all they can be.'' *I'm Praying That the Categories Are: ''Football, people I've worked with, and my real name,'' says Thomas. *I'm Praying That the Categories Are Not: ''Elizabethan hat sizes or fun with phlegm,'' says Wheel of Fortune's Pat Sajak. *Typical Jeopardy! Answer: Robert Kennedy quit this cabinet post in 1964 to run for Senate. Celeb response (from comedian Elayne Boosler): ''I wasn't born yet.'' (The question: What is attorney general?) *Is It All in Fun? ''I'm expecting Jeopardy! will kill my career,'' says Poundstone.