Fiona Bruce presents from Eltham Palace in Greenwich, south-east London, where items include a diamond bracelet and a tea set that went to Antarctica.
The team discovers the personal stories behind treasured objects associated with WWI.
Fiona Bruce looks back at favourite finds from the past 40 years of the programme.
Items include an emerald and diamond ring worn by the owner's grandmother on the Titanic.
Fiona Bruce discusses the contents of the time capsules buried on the show.
Items include blueprints for the bouncing bomb, and a 17th-century silver flagon.
Items include a machine labelled 'Certain Death' and the Duke of Wellington's nightcap.
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