Natasha Kaplinsky has attracted almost one million viewers for her debut as presenter of Five News, according to overnight figures.
Natasha Kaplinsky has become the new face of Five News
The number is nearly double the usual audience for the 1700 GMT bulletin and is a 7.5% share.
Her second bulletin, two hours later, attracted 431,000 viewers, a 1.9% share - almost a third more than average.
Kaplinsky, 35, one of the country's most high-profile news presenters, left the BBC to join Five.
After she left, she denied money was the motivating factor despite reports of a £1m deal, saying: "It was never about money.
"If it had been, I wouldn't have taken so long deciding whether to join."
Instead she said she wanted the opportunity to present a programme on her own.
Both her programmes are half an hour long.