I caught the show last night, they show a piece of (forget the word) fish fence they used to use to trap the fish at low tide. They found it when they starting excavating Boston, it was 4000 yrs old
All in all it was a pretty informative show, showing how cod helped to make the colonists more independant. Also that Paul Revere in 1776 used a cod on some money piece for the colonies as well as a sign of prosperity..I thought it was pretty interesting...