Who wrote the episode that had 1.08 million U.S. viewers?
CREATE TABLE "table1_26136228_3" (
  "series_no" real,
  "episode_no" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "u_s_viewers_millions" text
);
SELECT "written_by" FROM "table1_26136228_3" WHERE "u_s_viewers_millions"='1.08';