What is the title that has 14.59 u.s. viewers (millions)?
CREATE TABLE "table1_22078691_2" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "u_s_viewers_millions" text
);
SELECT "title" FROM "table1_22078691_2" WHERE "u_s_viewers_millions"='14.59';