I'm not a big fan of Leno. Well, he is great about signing autographs. I just don't think he's got great comedic instincts.

On his first day back behind the Tonight Show desk (and a funny bit he did in which they look for a new desk by going door to door), he actually had a funny show.

Jamie Fox opened a bottle of champage and handed it to a woman in the audience.

Over on Letterman, his friend Bill Murray game out with crutches. He joked about a skiing injury in the Olympics (with funny video to go with that). But when the camera did a close up of his knee, you could tell he really had some major surgery. I have no clue why it wasn't in a cast.

He then asked Letterman to sign his knee.

Dave took a Sharpie, and wrote "Good Luck, Dave". The usually Dave signature that has the "a" starting inside the letter D.

The signature will be gone next time Bill Murray takes a shower.

I'm guessing the bottle of champagne the fan was given on The Tonight Show, will be kept forever.