ANTIQUES ROADSHOW presenter Mark Hill had to warn a guest to take a seat after revealing his antiques were valued at an astonishing cost.
Mark was joined on the BBC One show by a guest who bought in two wooden 1960s ancient Greek-inspired chairs.
After examining them, expert Mark explained that they were of "superb quality," and were designed by renowned British-born architect and furniture designer T.H.Robsjohn-Gibbings.
The guest revealed that he had bought the chairs because of their "elegant look and comfort" and had another two back home.
He added that he had paid probably about £1,000 each for them.
Mark explained: "There’s always an exception to every rule and this pair of chairs by T.H.Robsjohn-Gibbings is typical of that.
"While everyone was looking at Scandinavian designs, and plastics, here Robsjohn-Gibbings looks all the way back to ancient Greece."
"He [T.H.Robsjohn-Gibbings] was very unusual in his day, so he became perhaps one of American’s most influential and most important designers in the 1930s and 1940s," Mark added.
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The expert then told the guest that he "might want to be sitting down" as he revealed their true worth.
"They are fabulous quality, they are supremely stylish, they make a statement and as we can both see they are extraordinarily comfy," Mark explained
After giving them a thorough lookover, Mark revealed they were worth a whopping £4,000 each, meaning the total set of four was worth £16,000.
The delighted guest replied: "I’ll take that, that’s amazing. That’s really, really good."
Antiques Roadshow airs Sundays on BBC One and is available on BBC iPlayer.