In the first episode she reveals the immense influence of the 17th-century pioneer collectors such as Thomas Howard, the 'Collector' Earl of Arundel, King Charles I and his entourage known as the Whitehall Group. Rosslyn explores how this group also brought a taste for the Baroque to Britain, commissioning continental artists such as Rubens, Van Dyck and later Antonio Verrio. Featuring Verrio's extraordinary Hell Staircase at Burghley House in Cambridgeshire, as well as highlights from the collections at Arundel Castle in Sussex and Wilton House in Wiltshire, the series offers not only a visual treat but a surprising narrative to our national treasures.

With Britain's country houses being home to world-class art collections full of priceless old masters and more, this three-part series sees art historian Helen Rosslyn tells the story of how great art has been brought to Britain by passionate collectors and how these same have also turned patron and commissioned work from the cream of their contemporary crop of painters. In this episode she focuses on the 18th century, the Grand Tour era when aristocrats filled their Palladian villas with masterpieces by 17th-century classical painters. Throwing open the doors of some of our most magnificent stately homes, Rosslyn visits Holkham Hall in Norfolk to view the Grand Tour collection there, before going on to explore the legacy of the Dukes of Richmond at Goodwood House. She also visits Petworth House in Sussex where the one-time Lord Egremont patronised JMW Turner.

Helen Rosslyn explores how collecting reached its maturity in the 19th century when unprecedented wealth from Britain's booming economy encouraged enlightened, philanthropic industrialists to spend their fortunes on art, and in many cases then donate their collections to the nation. With different taste from the British aristocracy who had dominated collecting to this point, a new breed of art buyer enriched Britain's cultural story by acquiring adventurous and often avant-garde work. Helen looks at the influence of pharmaceutical magnate Thomas Holloway, the Rothschild banking dynasty and the Welsh Davies sisters.