The Hartmanns are set to appear on a new ITV show and become Scotland’s first showbiz family.Taking a leaf out of the Kardashians’ book, the clan – led by fashion powerhouse Tessa - are reportedly going to be front and centre of new ITVBe series The Real Housewives of Jersey.And it’s going to be the biggest show set on the Channel Islands since 80s cop series Bergerac which starred John Nettles.Tessa, 50, will be joined by her German film-maker husband Sascha, 40, and their daughters Tallia