Archaeology

I watched The Great British Dig last night and was surprised to see my house on it! It must have been filmed last summer but I have no recollection of seeing any related activity last year.
The dig was to find an old Mill that was a POW camp during the war. The Mill was demolished and became an industrial yard. About five years ago a small housing estate was built on it and my house overlooks the site.
They didn't find much and had to really stretch the limits of credibility to link the bits they did find to the Mill. A brick, a 1943 halfpenny and a small piece of painted concrete were about it.
Around the perimeter of the estate is a wooded valley which has a number of concrete fence posts, the photo is of a corner one, which the team were convinced of belonging to the POW period of the Mill. I'm not convinced.