Guthrie, 40, who previously served as co-host of the morning program's third hour, will join Matt Lauer in the main hosting chairs in a shake-up of the show's line-up aimed at curbing a recent decline in ratings, the network said.

"She's got an undeniable range, and she's earned the trust of the news community, her colleagues and our viewers alike. I couldn't be happier for Savannah and the entire ‘Today' team," NBC News President Steve Capus said in a statement.

Guthrie replaced Curry after "Today" had slipped in the ratings since Curry took the chair co-hosting with Lauer in June 2011.

In April, ABC's "Good Morning America" moved ahead of "Today" in the weekly ratings race among total viewers for the first time in 16 years, according to Horizon Media. "Today" kept the lead among adults aged 25 to 54.

Since then, the two shows have traded the No. 1 spot among total viewers.

Curry made an emotional on-air departure from the show on Thursday after just a year in the job, tearfully thanking the viewers who had supported her and saying that for those "who saw me as a ground breaker, I am sorry I could not carry the ball across the finish line."

She will remain as an anchor-at-large for "Today" and other NBC newscasts while reporting on stories from around the globe.

"Today", a huge profit center for NBC, generated $848 million in advertising revenue for the company last year, while "Good Morning America" made about $298 million, according to Horizon Media.

Comcast Corp owns NBC, and Walt Disney Co owns ABC.

(Reporting by Christine Kearney; Editing by Dale Hudson)

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