So, I thought I'll just watch the first episode then get to bed a somewhat reasonable hour for a change, that is not now going to happen.

Already I can tell this show will be a joy to watch. As others have already pointed out in the comments the writing, acting, directing, pace, music, setting etc, etc are all much above the usual standard broadcast, streamed or downloaded to and by us. This show is a bright and beguiling treat. Now, dear friends, on to episode 2.