The Final Series of the BBC’s “Downton Abbey” on PBS-TV takes place from 1925 to 1927. As the series enthralls us with the fashions and hair of the ’20s, we will see more of the bandeau, newer worn low on the forehead, and wider. Here is Laura Carmichael as Lady Edith and her dressy jeweled bandeau. So much more fashion than a tiara! However, is she going to bob and cut her hair? Whatever, let’s hope Julian Fellows, Creator and Writer of the hit Series, lets her finally find happiness. Lady Edith has suffered, but she does look better every episode …