I was surprised to see little mention of this, so here you are.
I caught it a few minutes ago on CSPAN.
Mr. Colbert set the bar high lo, all those years ago, so I'm not holding high expectations for Jimmy Kimmel as this year's feature roaster. I hope he does good.
President Obama's best zinger was a closing punch tailing general statements about his parents' places of birth. "Of course, I was born in Hawaii," Obama finished, then flashed a hilarious wink-with-side-nod to an imaginary conspirator.
UPDATE (7:22 PM PST): Into Kimmel for five minutes, and President Obama still owns the best gut-busters. Giving it time...
7:27 PM PT: Kimmel, to the hard-right wing: "You know what the difference is between Bill Maher and Rush Limbaugh? Bill Maher's viewers know he's an asshole." Good one.
7:29 PM PT: That was one bad ending to a titanic riff on Rachel Maddow.
7:31 PM PT: Speculation: that what Kimmel really wants to ask Captain Sullenberger is for him to land this crashing plane of an act.
7:34 PM PT: ... and a Stevie Wonder joke. Please brace yourselves in crash position.
7:38 PM PT: Kimmel does a sly turn on the tired "3 billion Chinese can't be wrong" in a reference to Current TV, by saying that he doesn't turn to 'Channel One Million.'
7:43 PM PT: And now, Ed Henry. Damn, we need ten more Stephen Colberts, birthed in the genetic soil of Mark Twain, and pronto.
8:53 PM PT: Thanks to marigold, for posting this video of President Obama's comic segment: