The 60-year-old news presenter will be the main presenter of the network's New Year's Eve broadcast, Countdown 2000, which will show key events from around the UK and the rest of the world.

ITV's coverage will include news from the London Eye

He will lead an ITN team from 1000 on New Year's Eve, showing hourly snapshots as different time zones reach midnight.

These will begin with the Pacific island of Kiribati, and then will call in at Auckland, Sydney, Tokyo and Beijing.

ITN crews in the UK will report from Edinburgh's Hogmanay celebrations, and from Swavesey in Cambridgeshire - which lies on the Greenwich meridian. There will also be coverage from the London Eye - the capital's millennium wheel.

Nightly News presenter Dermot Murnaghan will join Sir Trevor in the studio, while Nicholas Owen and Katie Derham will report from the Millennium Dome as it is opened by the Queen.

Both BBC and ITV will be at the Dome

John Suchet will be with the crowds awaiting Big Ben's chimes, while Andrea Catherwood will be just across the Thames at St Thomas' Hospital to see if a baby is born as the new year starts.

The BBC's centrepiece programme, 2000 Today, is billed as the most ambitious live television event ever. It lasts 27 hours and involves 50 broadcasters from around the world.