The A-list actor will co-host the new version of the fourth hour of NBC's staple morning show for one week this month.

Four-time Indy 500 winner Helio Castroneves will attempt to make the Daytona 500 in the Project 91 car in February.

The expert behavioral scientist has been hard at work as the twists and turns continue on The Irrational Season 2. Viewers ...