Time Team

Undeterred by Marcus Brigstocke's

merciless spoof, We Are History, catch it on Monday on BBC2 at 9.50pm), Tony Robinson dashes about the latest Time Team site, at Blaenavon in South Wales, declaring: 'We've got just three days to find out.'

To find out what?

The fate of a railway used to carry ore to the 18th-century ironworks by way of an impressive viaduct.

Every trace is now buried under a landscape of spoilheaps. This will mean digging a very deep hole. A very, very deep hole.

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