Antiques Roadshow: Piece Hall 1

Fiona Bruce presents the show from Piece Hall in Halifax, the only surviving 18th-century cloth hall where textiles were once traded. Items featured include a sapphire that jewellery specialist John Benjamin thinks is the biggest he has ever seen - but which the owner thinks is fake. Other finds include a Chinese imperial robe, a mysterious set of 17th-century doors, and the oldest piece of glass to ever appear on the show