Ah hah! Whenever "Time Team" was on I knew I recognized him but couldn't place where.
By the way, as a history buff I loved the premise of Time Team but it seemed that ever one I watched they had like one day to dig and were always "this close" to finding something important but ran out of daylight. "We did, however, find this button. It appears to be from a period 400 years later than we were seeking but isn't it interesting how things developed here?" Always left me a little disappointed.
They only had three days to do each dig, but I think that local archaeologists, and volunteers would continue with the digs, finish them up, do the official reports, and then turn over the finds to whatever museum/archives should get them.