The Antiques Roadshow is filming at Hatfield House today.

The BBC1 show is filming in the grounds of the stately home until 4.30pm.

Host Fiona Bruce and the team of experts, including Eric Knowles and Bunny Campione, will be hoping to uncover some hidden treasures.

That’s what happened when the roadshow came to Knebworth House, back in 2000.

Among the finds that day was a bronze Spirit of Ecstasy, the mascot on a Rolls-Royce. Bought for �400 in New Jersey in the 1980s it was valued by the experts at �10,000.

There was also a Minton majolica umbrella stand in the shape of a heron which had been dumped in the garden but was worth �4,000 to �6,000.

A large 19th century cabinet full of stuffed birds, bought for �400, was also given a �4,000 to �6,000 valuation.

Admission is free to today’s event at Hatfield House.

Series editor Simon Shaw said: “As a television producer it’s a scary prospect when we turn up for a day’s filming and no knowledge of what might turn up.

“I often look at the queue first thing and say a quiet prayer that there really are interesting pieces in all those bags.

“Amazingly we still keep finding fascinating pieces – and some of the best aren’t necessarily the most valuable.”