The Antiques Roadshow visits Plas Newydd in Wales, where treasures include a Victorian cane and a piece of the Menai suspension bridge.

The Antiques Roadshow pays tribute to Her Majesty the Queen as she becomes Britain's longest-serving monarch.

The Antiques Roadshow visits RAF Coningsby in Lincolnshire, where treasures include a portrait by John Singer Sargent and a teddy that flew with the Dambusters.

Fiona Bruce welcomes visitors to Broughton Castle, where unusual finds include a book of early police mugshots, a Victorian baby bouncer and a musical penknife.

Fiona Bruce introduces a visit to Durham Cathedral, where treasures include a missionary's medical kit, an etching by Dame Laura Knight and a carriage clock.

Finds in Plymouth include a pair of doorknobs said to have belonged to Lord Nelson and a psychedelic painting of a band that played at Woodstock.

The Antiques Roadshow visits Bolsover Castle in Derbyshire, where treasures include original illustrations for a Roald Dahl story and a miniature workshop.

The Antiques Roadshow returns to Bolsover Castle, where treasures include a rare jade pendant, a painting by DH Lawrence and a collection of vintage hats.

The Antiques Roadshow makes a return visit to RAF Coningsby, where treasures include an aristocratic harp and a piece of wood with a mysterious function.

It's a glorious summer's day in Kent as the Antiques Roadshow arrives in Walmer Castle near Deal, where treasures include a valuable Wemyss piglet, a remarkable prisoner of war diary and a showstopping collection of ceramic grotesque birds by Martin Brothers.

The team returns to Walmer Castle, where treasures include a rare enamel racing car sign.

By special permission from the royal household, Antiques Roadshow welcomes visitors to Balmoral, the Queen's private residence in Aberdeenshire, where treasures brought before the experts include a diamond tiara, a giant telescope and a ceramic pot by Pablo Picasso. In the Imposter Challenge, militaria specialist Mark Smith wonders whether Fiona Bruce can spot a forgery amongst a collection of rare medals.

Treasures include an 18th-century bottle, a mirror, and a collection of medals.

The Antiques Roadshow pays a second visit to Trentham Gardens near Stoke-on-Trent, as Fiona Bruce and the team of specialists prepare for another busy day valuing family treasures.