CBS says Tony Dokoupil will take over at the beginning of next year as anchor of its flagship “CBS Evening News” broadcast.

Tom Llamas will succeed Lester Holt as NBC “Nightly News” anchor this summer, but he'll be working double duty.

CBS News has moved fast to reconfigure the “CBS Evening News” after announcing the exit of Norah O'Donnell as anchor of the third-rated newscast earlier this week.