CBS just now booked "Survivor" for two more seasons -- the 23rd and 24th. That's no surprise, but this was: Jeff Probst also got re-upped for two more. You know what that means: Strike him off that short list of possible Regis Philbin successors. I'm a little surprised but not shocked: This show, in some respects, is Probst. His spirit and talent (and yes, he's terrific at it) suffuses "Survivor" and it'd be hard to imagine the show without him. Meanwhile, definitely watch tonight (I have): This is the episode where Russell Hantz lands on Redemption Island. Will Russell survive? Umm, now you don't honestly expect me to tell you, do you?