birthday4.jpg Happy 4th birthday to CNN’s Situation Room with Wolf Blitzer! Wolf toasted his anniversary on air today…only to get jabbed by fellow CNN anchor Jack Cafferty who said to Blitzer, “You know what I find remarkable? I look pretty much the same, but you’ve aged a lot.”

Blitzer teased, “I know I have. That’s what The Situation Room has done to me. Time flies when you’re having fun.”

And fun he’s having. Last week, thousands of callers got a chance to weigh-in on the President’s performance via “Wolfline,” Blitzer’s pre-recorded CNN telephone poll and tomorrow, the CNN star will hit the phone again.

This time, Wolf will be dishing, not taking the feedback as helpline “expert” for The View’s Sherri Shepherd, one celebrity contestant from the “Who Wants to Be a Millionaire” 10th Anniversary special two-week event.

But Blitzer’s not alone on the “Millionaire” circuit. Recent ratings victor, George Stephanopoulos is on-call for Vanessa Williams tonight, CNN’s Candy Crowley will be Olympian Shawn Johnson‘s lifeline on Thursday and Gwen Ifill will back up country music star Wynonna on the 18th.