There was mourning, the expected intrigue, dancing and looming change both upstairs and downstairs last night on the Season 4 premiere of Downton Abbey on PBS. There were also a lot of people watching: Airing at 9 PM, the two-hour episode, which is set in 1922 and takes place six months after the sudden death of Downton heir Matthew Crawley, pulled in 10.2 million viewers. That’s up 22% from the Season 3 debut and a series high for the show, eclipsing the previous record of the Season 3 finale on PBS last February. The third season of the British aristocratic period drama debuted on January 6, 2013, to 7.9 million viewers, which was a strong leap from the 4.2 million who watched the second-season launch on January 9, 2012. Even before this latest cycle started, Downton Abbey has been the highest-rated drama in PBS history.