How did the episode rank that had 2.65 million viewers?
CREATE TABLE "season_1" (
  "no" real,
  "episode" text,
  "air_date" text,
  "timeslot" text,
  "rating" text,
  "share" real,
  "18_49_rating_share" text,
  "viewers_m" text,
  "rank_num" text
);
SELECT "rank_num" FROM "season_1" WHERE "viewers_m"='2.65';