The theme weeks begin at “Dancing with the Stars.” Sometimes, they can be amazing (bring back Classical Week!), other times painful (the “All-American” episode tied to Patriots’ Day, a holiday celebrated primarily in host Tom Bergeron’s former Massachusetts haunt). Tonight’s event: “The Most Memorable Year of My Life,” where the celebrities dance to songs of their choice. As with last year, Story Night means a preponderance of rumbas--half of the 10 couples, to be exact. Will Chynna Phillips turn her sexy on? Which judge will refer first to the “vertical expression of a horizontal desire?” In Other-Dance Land, can Carson Kressley produce a serious tango?