When a guest host subs for the regular host on a talk show, it's often a real letdown. But that's not the case when Anderson Cooper sits in for Regis on Live with Regis & Kelly. You can be guaranteed at least one very funny moment. Like yesterday, when he made Kelly laugh so hard something terrible happened. (He's co-host today, too.)

Regis Philbin, the iron man of daytime television and entertainment in general, looks to be on the mend after having triple-bypass surgery last month. The New York Post reports that not only is he walking again, but he's actually taking shopping trips with wife Joy, and told reporters that he was feeling well.

Originally he was supposed to be out for five weeks, but it's possible he could be back a little earlier than that (though it's already been three weeks, so I doubt he'll be back until the five weeks are up). He didn't ask me, but Regis? Take your time coming back. We know you're in great shape and a workhorse and all that, but really, you're 75 years old and just had major surgery. You don't need to be all excited listening to Kelly's stories about her kids and all those screaming fans.

On Monday, Martin Short will be the guest host on Live with Regis & Kelly, and then Pat Sajak takes over for the rest of the week. The following week, Jeff Probst is the guest host.

Anna told you yesterday about Regis Philbin's surprise announcement that he will undergo a heart bypass procedure this week. Philbin's last day for at least five weeks was yesterday, and the show has announced who will fill in for him while he's recuperating.

Today and tomorrow, CNN's Anderson Cooper, who has guest-hosted the show before, will take over for Regis in the chair next to Kelly Ripa. Then on Thursday and Friday, MTV's Damien Fahey will fill in. Then there will be a rotating group of celebs who will take over, and that list includes Jeff Probst, Martin Short, Donald Trump, Neil Patrick Harris, Howie Mandel, and Pat Sajak.

Wait a sec...no women? I know they like to have that male/female dynamic on the show, but come, who wouldn't watch Kathie Lee Gifford sit next to Kelly Ripa for a few days?