Thanks for the tip-off Jim - I've just watched the first one.
I thought that for a mainstream programme aimed at a general audience it was pretty good. It did show quite a few pieces with some sensible experts enthusing (though the camerawork was poor at times, wobbling off to show the presenter not the furniture).
There were lots of questions left unanswered though - how did he manage to start in London with the Director and a big workshop and staff? Was any furniture actually made by him? Was the family trade carpentry or joinery? (They are not the same thing!)
But overall pretty good and I'll be watching the others as well.