NEW YORK (AP) _ Betsy West, an executive who helped launch ``PrimeTime Live'' and ``Turning Point'' while at ABC News, has joined CBS and will oversee that network's prime-time news broadcasts.

West, who has won 18 Emmy Awards during her career at ABC, will oversee ``48 Hours,'' ``60 Minutes'' and the new ``60 Minutes II'' newsmagazine, which will launch next year.

West most recently helped create the new medical and legal news units within ABC News. She reports to CBS News President Andrew Heyward, who announced the appointment on Monday.

``This is a once-in-a-lifetime opportunity,'' West said.