Play of the Day -- Romney's Blunt Amendment blunder

After Mitt Romney appeared to change positions on the Blunt Amendment, Jon Stewart on Thursday submitted a new measure of time to the Oxford English Dictionary -- "The Romney."

"It's defined as the three-and-a-half hour window in which a grown man running for president can change his deeply held conviction to its opposite," Stewart joked.

And don't miss today's Must See Moment at :47 when Jimmy Kimmel shows a sneak-peek of the new Lifetime reality series Life's a Tripp, starring Bristol Palin and her son: