Presenter Tim Wonnacott visits stately Grimsthorpe Castle in Lincolnshire and looks at how it was extravagantly refurbished in the 19th century.
Experts Mark Stacey and David Harper lend a hand to the bargain hunters searching out good buys at an antiques fair held in the castle's grounds. But will their finds make any profit at auction?
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Ready to Watch Bargain Hunt, Season 22, Episode 5?