We watched the first episode of the new Masterpiece series "Mr. Selfridge" last night. I won't bother watching any of the rest of it. Mediocre writing, distasteful characters, inept acting, uninteresting story.
My advice to the Masterpiece people: Don't pander to American audiences by including American characters, and certainly don't focus on the American characters. You've done very well in the past with your period tales of upper-class English families in expensive clothes and surroundings. In any case, and above all, focus on the story and hire the best writers and actors, and please don't reuse the gang responsible for this failure.