List the number of shows that had 12.04 million viewers in the united states
CREATE TABLE "table1_22904780_1" (
  "no" real,
  "num" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "u_s_viewers_million" text,
  "rank_week" real,
  "original_air_date" text
);
SELECT COUNT("title") FROM "table1_22904780_1" WHERE "u_s_viewers_million"='12.04';