Yes, folks, it’s time to say goodbye. This evening marks the finale of six years of Downton Abbey on PBS in the United States. I honestly don’t know what I’m going to do with my Sunday nights now. The weeks ahead just won’t feel the same without this program to cheer up the dreary Sunday evenings—it was always something to look forward to on the eve of the dreaded Monday morning. Now Mondays will seem even bleaker. I should apologize. I’m supposed to be writing today to help us all cope with the end of this fantastic series, but I’m afraid I’m going to fail miserably at it. I’m having…