The creator of Downton Abbey Lord Julian Fellowes was perplexed with the success of the show. Not expecting it to be such a big hit, Fellowes admitted not to know what attracted so many viewers.
The Lord who does not consider himself an aristocrat believes the popularity of the show is due to an equally balanced set of characters, not all being upper class baddies nor all the servants comical.
The writer admitted he cannot be sure of that though or he would write popular shows that attract many viewers for the rest of his life.